Linux patch 4.9.238

Signed-off-by: Mike Pagano <mpagano@gentoo.org>

2 files changed, 4363 insertions, 0 deletions

diff --git a/0000_README b/0000_README
index 2b5f2bf1..c39cf2ba 100644
--- a/0000_README
+++ b/0000_README
@@ -991,6 +991,10 @@ Patch:  1236_linux-4.9.237.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.9.237
 
+Patch:  1237_linux-4.9.238.patch
+From:   http://www.kernel.org
+Desc:   Linux 4.9.238
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.
diff --git a/1237_linux-4.9.238.patch b/1237_linux-4.9.238.patch
new file mode 100644
index 00000000..2a0fbe43
--- /dev/null
+++ b/1237_linux-4.9.238.patch
@@ -0,0 +1,4359 @@
+diff --git a/Documentation/DocBook/libata.tmpl b/Documentation/DocBook/libata.tmpl
+index d7fcdc5a43792..9b55778ab024f 100644
+--- a/Documentation/DocBook/libata.tmpl
++++ b/Documentation/DocBook/libata.tmpl
+@@ -324,7 +324,7 @@ Many legacy IDE drivers use ata_bmdma_status() as the bmdma_status() hook.
+ 
+ 	<sect2><title>High-level taskfile hooks</title>
+ 	<programlisting>
+-void (*qc_prep) (struct ata_queued_cmd *qc);
++enum ata_completion_errors (*qc_prep) (struct ata_queued_cmd *qc);
+ int (*qc_issue) (struct ata_queued_cmd *qc);
+ 	</programlisting>
+ 
+diff --git a/Documentation/devicetree/bindings/sound/wm8994.txt b/Documentation/devicetree/bindings/sound/wm8994.txt
+index 68c4e8d96bed6..b309de00cd836 100644
+--- a/Documentation/devicetree/bindings/sound/wm8994.txt
++++ b/Documentation/devicetree/bindings/sound/wm8994.txt
+@@ -14,9 +14,15 @@ Required properties:
+   - #gpio-cells : Must be 2. The first cell is the pin number and the
+     second cell is used to specify optional parameters (currently unused).
+ 
+-  - AVDD2-supply, DBVDD1-supply, DBVDD2-supply, DBVDD3-supply, CPVDD-supply,
+-    SPKVDD1-supply, SPKVDD2-supply : power supplies for the device, as covered
+-    in Documentation/devicetree/bindings/regulator/regulator.txt
++  - power supplies for the device, as covered in
++    Documentation/devicetree/bindings/regulator/regulator.txt, depending
++    on compatible:
++    - for wlf,wm1811 and wlf,wm8958:
++      AVDD1-supply, AVDD2-supply, DBVDD1-supply, DBVDD2-supply, DBVDD3-supply,
++      DCVDD-supply, CPVDD-supply, SPKVDD1-supply, SPKVDD2-supply
++    - for wlf,wm8994:
++      AVDD1-supply, AVDD2-supply, DBVDD-supply, DCVDD-supply, CPVDD-supply,
++      SPKVDD1-supply, SPKVDD2-supply
+ 
+ Optional properties:
+ 
+@@ -68,11 +74,11 @@ codec: wm8994@1a {
+ 
+ 	lineout1-se;
+ 
++	AVDD1-supply = <&regulator>;
+ 	AVDD2-supply = <&regulator>;
+ 	CPVDD-supply = <&regulator>;
+-	DBVDD1-supply = <&regulator>;
+-	DBVDD2-supply = <&regulator>;
+-	DBVDD3-supply = <&regulator>;
++	DBVDD-supply = <&regulator>;
++	DCVDD-supply = <&regulator>;
+ 	SPKVDD1-supply = <&regulator>;
+ 	SPKVDD2-supply = <&regulator>;
+ };
+diff --git a/Makefile b/Makefile
+index 3c78b28c6a0da..41a7d6626e354 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 9
+-SUBLEVEL = 237
++SUBLEVEL = 238
+ EXTRAVERSION =
+ NAME = Roaring Lionus
+ 
+diff --git a/arch/m68k/q40/config.c b/arch/m68k/q40/config.c
+index ea89a24f46000..cc0f924bbdd2d 100644
+--- a/arch/m68k/q40/config.c
++++ b/arch/m68k/q40/config.c
+@@ -303,6 +303,7 @@ static int q40_get_rtc_pll(struct rtc_pll_info *pll)
+ {
+ 	int tmp = Q40_RTC_CTRL;
+ 
++	pll->pll_ctrl = 0;
+ 	pll->pll_value = tmp & Q40_RTC_PLL_MASK;
+ 	if (tmp & Q40_RTC_PLL_SIGN)
+ 		pll->pll_value = -pll->pll_value;
+diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
+index bdd6dc18e65c6..941efd8783344 100644
+--- a/arch/mips/include/asm/cpu-type.h
++++ b/arch/mips/include/asm/cpu-type.h
+@@ -47,6 +47,7 @@ static inline int __pure __get_cpu_type(const int cpu_type)
+ 	case CPU_34K:
+ 	case CPU_1004K:
+ 	case CPU_74K:
++	case CPU_1074K:
+ 	case CPU_M14KC:
+ 	case CPU_M14KEC:
+ 	case CPU_INTERAPTIV:
+diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
+index a559908d180ec..ce49c2b9db7ee 100644
+--- a/arch/s390/kernel/setup.c
++++ b/arch/s390/kernel/setup.c
+@@ -529,7 +529,7 @@ static struct notifier_block kdump_mem_nb = {
+ /*
+  * Make sure that the area behind memory_end is protected
+  */
+-static void reserve_memory_end(void)
++static void __init reserve_memory_end(void)
+ {
+ #ifdef CONFIG_CRASH_DUMP
+ 	if (ipl_info.type == IPL_TYPE_FCP_DUMP &&
+@@ -547,7 +547,7 @@ static void reserve_memory_end(void)
+ /*
+  * Make sure that oldmem, where the dump is stored, is protected
+  */
+-static void reserve_oldmem(void)
++static void __init reserve_oldmem(void)
+ {
+ #ifdef CONFIG_CRASH_DUMP
+ 	if (OLDMEM_BASE)
+@@ -559,7 +559,7 @@ static void reserve_oldmem(void)
+ /*
+  * Make sure that oldmem, where the dump is stored, is protected
+  */
+-static void remove_oldmem(void)
++static void __init remove_oldmem(void)
+ {
+ #ifdef CONFIG_CRASH_DUMP
+ 	if (OLDMEM_BASE)
+diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
+index 4af16acc001a3..204a5ce65afda 100644
+--- a/arch/x86/include/asm/nospec-branch.h
++++ b/arch/x86/include/asm/nospec-branch.h
+@@ -321,7 +321,7 @@ DECLARE_STATIC_KEY_FALSE(mds_idle_clear);
+  * combination with microcode which triggers a CPU buffer flush when the
+  * instruction is executed.
+  */
+-static inline void mds_clear_cpu_buffers(void)
++static __always_inline void mds_clear_cpu_buffers(void)
+ {
+ 	static const u16 ds = __KERNEL_DS;
+ 
+@@ -342,7 +342,7 @@ static inline void mds_clear_cpu_buffers(void)
+  *
+  * Clear CPU buffers if the corresponding static key is enabled
+  */
+-static inline void mds_user_clear_cpu_buffers(void)
++static __always_inline void mds_user_clear_cpu_buffers(void)
+ {
+ 	if (static_branch_likely(&mds_user_clear))
+ 		mds_clear_cpu_buffers();
+diff --git a/arch/x86/include/asm/pkeys.h b/arch/x86/include/asm/pkeys.h
+index c50d6dcf4a227..4e7273e176cb7 100644
+--- a/arch/x86/include/asm/pkeys.h
++++ b/arch/x86/include/asm/pkeys.h
+@@ -3,6 +3,11 @@
+ 
+ #define ARCH_DEFAULT_PKEY	0
+ 
++/*
++ * If more than 16 keys are ever supported, a thorough audit
++ * will be necessary to ensure that the types that store key
++ * numbers and masks have sufficient capacity.
++ */
+ #define arch_max_pkey() (boot_cpu_has(X86_FEATURE_OSPKE) ? 16 : 1)
+ 
+ extern int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
+diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
+index e9d7f461b7fa5..dbd396c913488 100644
+--- a/arch/x86/kernel/fpu/xstate.c
++++ b/arch/x86/kernel/fpu/xstate.c
+@@ -871,8 +871,6 @@ const void *get_xsave_field_ptr(int xsave_state)
+ 
+ #ifdef CONFIG_ARCH_HAS_PKEYS
+ 
+-#define NR_VALID_PKRU_BITS (CONFIG_NR_PROTECTION_KEYS * 2)
+-#define PKRU_VALID_MASK (NR_VALID_PKRU_BITS - 1)
+ /*
+  * This will go out and modify PKRU register to set the access
+  * rights for @pkey to @init_val.
+@@ -891,6 +889,13 @@ int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
+ 	if (!boot_cpu_has(X86_FEATURE_OSPKE))
+ 		return -EINVAL;
+ 
++	/*
++	 * This code should only be called with valid 'pkey'
++	 * values originating from in-kernel users.  Complain
++	 * if a bad value is observed.
++	 */
++	WARN_ON_ONCE(pkey >= arch_max_pkey());
++
+ 	/* Set the bits we need in PKRU:  */
+ 	if (init_val & PKEY_DISABLE_ACCESS)
+ 		new_pkru_bits |= PKRU_AD_BIT;
+diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h
+index 756b14ecc957a..df1076b0eabf3 100644
+--- a/arch/x86/kvm/mmutrace.h
++++ b/arch/x86/kvm/mmutrace.h
+@@ -336,7 +336,7 @@ TRACE_EVENT(
+ 		/* These depend on page entry type, so compute them now.  */
+ 		__field(bool, r)
+ 		__field(bool, x)
+-		__field(u8, u)
++		__field(signed char, u)
+ 	),
+ 
+ 	TP_fast_assign(
+diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
+index 6b7faa14c27bb..3c0f9be107e42 100644
+--- a/arch/x86/kvm/x86.c
++++ b/arch/x86/kvm/x86.c
+@@ -4263,10 +4263,13 @@ long kvm_arch_vm_ioctl(struct file *filp,
+ 		r = -EFAULT;
+ 		if (copy_from_user(&u.ps, argp, sizeof u.ps))
+ 			goto out;
++		mutex_lock(&kvm->lock);
+ 		r = -ENXIO;
+ 		if (!kvm->arch.vpit)
+-			goto out;
++			goto set_pit_out;
+ 		r = kvm_vm_ioctl_set_pit(kvm, &u.ps);
++set_pit_out:
++		mutex_unlock(&kvm->lock);
+ 		break;
+ 	}
+ 	case KVM_GET_PIT2: {
+@@ -4286,10 +4289,13 @@ long kvm_arch_vm_ioctl(struct file *filp,
+ 		r = -EFAULT;
+ 		if (copy_from_user(&u.ps2, argp, sizeof(u.ps2)))
+ 			goto out;
++		mutex_lock(&kvm->lock);
+ 		r = -ENXIO;
+ 		if (!kvm->arch.vpit)
+-			goto out;
++			goto set_pit2_out;
+ 		r = kvm_vm_ioctl_set_pit2(kvm, &u.ps2);
++set_pit2_out:
++		mutex_unlock(&kvm->lock);
+ 		break;
+ 	}
+ 	case KVM_REINJECT_CONTROL: {
+diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
+index 307b3e28f34ce..8781b5dc97f1c 100644
+--- a/drivers/acpi/ec.c
++++ b/drivers/acpi/ec.c
+@@ -1049,29 +1049,21 @@ void acpi_ec_unblock_transactions(void)
+ /* --------------------------------------------------------------------------
+                                 Event Management
+    -------------------------------------------------------------------------- */
+-static struct acpi_ec_query_handler *
+-acpi_ec_get_query_handler(struct acpi_ec_query_handler *handler)
+-{
+-	if (handler)
+-		kref_get(&handler->kref);
+-	return handler;
+-}
+-
+ static struct acpi_ec_query_handler *
+ acpi_ec_get_query_handler_by_value(struct acpi_ec *ec, u8 value)
+ {
+ 	struct acpi_ec_query_handler *handler;
+-	bool found = false;
+ 
+ 	mutex_lock(&ec->mutex);
+ 	list_for_each_entry(handler, &ec->list, node) {
+ 		if (value == handler->query_bit) {
+-			found = true;
+-			break;
++			kref_get(&handler->kref);
++			mutex_unlock(&ec->mutex);
++			return handler;
+ 		}
+ 	}
+ 	mutex_unlock(&ec->mutex);
+-	return found ? acpi_ec_get_query_handler(handler) : NULL;
++	return NULL;
+ }
+ 
+ static void acpi_ec_query_handler_release(struct kref *kref)
+diff --git a/drivers/ata/acard-ahci.c b/drivers/ata/acard-ahci.c
+index ed6a30cd681a0..98581ae397c12 100644
+--- a/drivers/ata/acard-ahci.c
++++ b/drivers/ata/acard-ahci.c
+@@ -72,7 +72,7 @@ struct acard_sg {
+ 	__le32			size;	 /* bit 31 (EOT) max==0x10000 (64k) */
+ };
+ 
+-static void acard_ahci_qc_prep(struct ata_queued_cmd *qc);
++static enum ata_completion_errors acard_ahci_qc_prep(struct ata_queued_cmd *qc);
+ static bool acard_ahci_qc_fill_rtf(struct ata_queued_cmd *qc);
+ static int acard_ahci_port_start(struct ata_port *ap);
+ static int acard_ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
+@@ -257,7 +257,7 @@ static unsigned int acard_ahci_fill_sg(struct ata_queued_cmd *qc, void *cmd_tbl)
+ 	return si;
+ }
+ 
+-static void acard_ahci_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors acard_ahci_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	struct ata_port *ap = qc->ap;
+ 	struct ahci_port_priv *pp = ap->private_data;
+@@ -295,6 +295,8 @@ static void acard_ahci_qc_prep(struct ata_queued_cmd *qc)
+ 		opts |= AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH;
+ 
+ 	ahci_fill_cmd_slot(pp, qc->tag, opts);
++
++	return AC_ERR_OK;
+ }
+ 
+ static bool acard_ahci_qc_fill_rtf(struct ata_queued_cmd *qc)
+diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
+index 1610fff19bb39..984260902d0be 100644
+--- a/drivers/ata/libahci.c
++++ b/drivers/ata/libahci.c
+@@ -73,7 +73,7 @@ static int ahci_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
+ static bool ahci_qc_fill_rtf(struct ata_queued_cmd *qc);
+ static int ahci_port_start(struct ata_port *ap);
+ static void ahci_port_stop(struct ata_port *ap);
+-static void ahci_qc_prep(struct ata_queued_cmd *qc);
++static enum ata_completion_errors ahci_qc_prep(struct ata_queued_cmd *qc);
+ static int ahci_pmp_qc_defer(struct ata_queued_cmd *qc);
+ static void ahci_freeze(struct ata_port *ap);
+ static void ahci_thaw(struct ata_port *ap);
+@@ -1607,7 +1607,7 @@ static int ahci_pmp_qc_defer(struct ata_queued_cmd *qc)
+ 		return sata_pmp_qc_defer_cmd_switch(qc);
+ }
+ 
+-static void ahci_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors ahci_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	struct ata_port *ap = qc->ap;
+ 	struct ahci_port_priv *pp = ap->private_data;
+@@ -1643,6 +1643,8 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc)
+ 		opts |= AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH;
+ 
+ 	ahci_fill_cmd_slot(pp, qc->tag, opts);
++
++	return AC_ERR_OK;
+ }
+ 
+ static void ahci_fbs_dec_intr(struct ata_port *ap)
+diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
+index 2aa10cd4c5b75..228a4cfb0e7d2 100644
+--- a/drivers/ata/libata-core.c
++++ b/drivers/ata/libata-core.c
+@@ -4895,7 +4895,10 @@ int ata_std_qc_defer(struct ata_queued_cmd *qc)
+ 	return ATA_DEFER_LINK;
+ }
+ 
+-void ata_noop_qc_prep(struct ata_queued_cmd *qc) { }
++enum ata_completion_errors ata_noop_qc_prep(struct ata_queued_cmd *qc)
++{
++	return AC_ERR_OK;
++}
+ 
+ /**
+  *	ata_sg_init - Associate command with scatter-gather table.
+@@ -5313,7 +5316,9 @@ void ata_qc_issue(struct ata_queued_cmd *qc)
+ 		return;
+ 	}
+ 
+-	ap->ops->qc_prep(qc);
++	qc->err_mask |= ap->ops->qc_prep(qc);
++	if (unlikely(qc->err_mask))
++		goto err;
+ 	trace_ata_qc_issue(qc);
+ 	qc->err_mask |= ap->ops->qc_issue(qc);
+ 	if (unlikely(qc->err_mask))
+diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
+index 0e2bc5b9a78c1..0edd83cae0fd0 100644
+--- a/drivers/ata/libata-sff.c
++++ b/drivers/ata/libata-sff.c
+@@ -2742,12 +2742,14 @@ static void ata_bmdma_fill_sg_dumb(struct ata_queued_cmd *qc)
+  *	LOCKING:
+  *	spin_lock_irqsave(host lock)
+  */
+-void ata_bmdma_qc_prep(struct ata_queued_cmd *qc)
++enum ata_completion_errors ata_bmdma_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	if (!(qc->flags & ATA_QCFLAG_DMAMAP))
+-		return;
++		return AC_ERR_OK;
+ 
+ 	ata_bmdma_fill_sg(qc);
++
++	return AC_ERR_OK;
+ }
+ EXPORT_SYMBOL_GPL(ata_bmdma_qc_prep);
+ 
+@@ -2760,12 +2762,14 @@ EXPORT_SYMBOL_GPL(ata_bmdma_qc_prep);
+  *	LOCKING:
+  *	spin_lock_irqsave(host lock)
+  */
+-void ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc)
++enum ata_completion_errors ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	if (!(qc->flags & ATA_QCFLAG_DMAMAP))
+-		return;
++		return AC_ERR_OK;
+ 
+ 	ata_bmdma_fill_sg_dumb(qc);
++
++	return AC_ERR_OK;
+ }
+ EXPORT_SYMBOL_GPL(ata_bmdma_dumb_qc_prep);
+ 
+diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c
+index e347e7acd8edb..d8000bbd1e11d 100644
+--- a/drivers/ata/pata_macio.c
++++ b/drivers/ata/pata_macio.c
+@@ -507,7 +507,7 @@ static int pata_macio_cable_detect(struct ata_port *ap)
+ 	return ATA_CBL_PATA40;
+ }
+ 
+-static void pata_macio_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors pata_macio_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	unsigned int write = (qc->tf.flags & ATA_TFLAG_WRITE);
+ 	struct ata_port *ap = qc->ap;
+@@ -520,7 +520,7 @@ static void pata_macio_qc_prep(struct ata_queued_cmd *qc)
+ 		   __func__, qc, qc->flags, write, qc->dev->devno);
+ 
+ 	if (!(qc->flags & ATA_QCFLAG_DMAMAP))
+-		return;
++		return AC_ERR_OK;
+ 
+ 	table = (struct dbdma_cmd *) priv->dma_table_cpu;
+ 
+@@ -565,6 +565,8 @@ static void pata_macio_qc_prep(struct ata_queued_cmd *qc)
+ 	table->command = cpu_to_le16(DBDMA_STOP);
+ 
+ 	dev_dbgdma(priv->dev, "%s: %d DMA list entries\n", __func__, pi);
++
++	return AC_ERR_OK;
+ }
+ 
+ 
+diff --git a/drivers/ata/pata_pxa.c b/drivers/ata/pata_pxa.c
+index f6c46e9a4dc0f..d7186a503e358 100644
+--- a/drivers/ata/pata_pxa.c
++++ b/drivers/ata/pata_pxa.c
+@@ -59,25 +59,27 @@ static void pxa_ata_dma_irq(void *d)
+ /*
+  * Prepare taskfile for submission.
+  */
+-static void pxa_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors pxa_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	struct pata_pxa_data *pd = qc->ap->private_data;
+ 	struct dma_async_tx_descriptor *tx;
+ 	enum dma_transfer_direction dir;
+ 
+ 	if (!(qc->flags & ATA_QCFLAG_DMAMAP))
+-		return;
++		return AC_ERR_OK;
+ 
+ 	dir = (qc->dma_dir == DMA_TO_DEVICE ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM);
+ 	tx = dmaengine_prep_slave_sg(pd->dma_chan, qc->sg, qc->n_elem, dir,
+ 				     DMA_PREP_INTERRUPT);
+ 	if (!tx) {
+ 		ata_dev_err(qc->dev, "prep_slave_sg() failed\n");
+-		return;
++		return AC_ERR_OK;
+ 	}
+ 	tx->callback = pxa_ata_dma_irq;
+ 	tx->callback_param = pd;
+ 	pd->dma_cookie = dmaengine_submit(tx);
++
++	return AC_ERR_OK;
+ }
+ 
+ /*
+diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c
+index 64d682c6ee57e..11da13bea2c93 100644
+--- a/drivers/ata/pdc_adma.c
++++ b/drivers/ata/pdc_adma.c
+@@ -132,7 +132,7 @@ static int adma_ata_init_one(struct pci_dev *pdev,
+ 				const struct pci_device_id *ent);
+ static int adma_port_start(struct ata_port *ap);
+ static void adma_port_stop(struct ata_port *ap);
+-static void adma_qc_prep(struct ata_queued_cmd *qc);
++static enum ata_completion_errors adma_qc_prep(struct ata_queued_cmd *qc);
+ static unsigned int adma_qc_issue(struct ata_queued_cmd *qc);
+ static int adma_check_atapi_dma(struct ata_queued_cmd *qc);
+ static void adma_freeze(struct ata_port *ap);
+@@ -311,7 +311,7 @@ static int adma_fill_sg(struct ata_queued_cmd *qc)
+ 	return i;
+ }
+ 
+-static void adma_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors adma_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	struct adma_port_priv *pp = qc->ap->private_data;
+ 	u8  *buf = pp->pkt;
+@@ -322,7 +322,7 @@ static void adma_qc_prep(struct ata_queued_cmd *qc)
+ 
+ 	adma_enter_reg_mode(qc->ap);
+ 	if (qc->tf.protocol != ATA_PROT_DMA)
+-		return;
++		return AC_ERR_OK;
+ 
+ 	buf[i++] = 0;	/* Response flags */
+ 	buf[i++] = 0;	/* reserved */
+@@ -387,6 +387,7 @@ static void adma_qc_prep(struct ata_queued_cmd *qc)
+ 			printk("%s\n", obuf);
+ 	}
+ #endif
++	return AC_ERR_OK;
+ }
+ 
+ static inline void adma_packet_start(struct ata_queued_cmd *qc)
+diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
+index a723ae9297831..100b5a3621ef3 100644
+--- a/drivers/ata/sata_fsl.c
++++ b/drivers/ata/sata_fsl.c
+@@ -513,7 +513,7 @@ static unsigned int sata_fsl_fill_sg(struct ata_queued_cmd *qc, void *cmd_desc,
+ 	return num_prde;
+ }
+ 
+-static void sata_fsl_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors sata_fsl_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	struct ata_port *ap = qc->ap;
+ 	struct sata_fsl_port_priv *pp = ap->private_data;
+@@ -559,6 +559,8 @@ static void sata_fsl_qc_prep(struct ata_queued_cmd *qc)
+ 
+ 	VPRINTK("SATA FSL : xx_qc_prep, di = 0x%x, ttl = %d, num_prde = %d\n",
+ 		desc_info, ttl_dwords, num_prde);
++
++	return AC_ERR_OK;
+ }
+ 
+ static unsigned int sata_fsl_qc_issue(struct ata_queued_cmd *qc)
+diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c
+index e81a8217f1ff7..349a175f02675 100644
+--- a/drivers/ata/sata_inic162x.c
++++ b/drivers/ata/sata_inic162x.c
+@@ -472,7 +472,7 @@ static void inic_fill_sg(struct inic_prd *prd, struct ata_queued_cmd *qc)
+ 	prd[-1].flags |= PRD_END;
+ }
+ 
+-static void inic_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors inic_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	struct inic_port_priv *pp = qc->ap->private_data;
+ 	struct inic_pkt *pkt = pp->pkt;
+@@ -532,6 +532,8 @@ static void inic_qc_prep(struct ata_queued_cmd *qc)
+ 		inic_fill_sg(prd, qc);
+ 
+ 	pp->cpb_tbl[0] = pp->pkt_dma;
++
++	return AC_ERR_OK;
+ }
+ 
+ static unsigned int inic_qc_issue(struct ata_queued_cmd *qc)
+diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
+index 2f32782cea6d9..513ef298dd960 100644
+--- a/drivers/ata/sata_mv.c
++++ b/drivers/ata/sata_mv.c
+@@ -605,8 +605,8 @@ static int mv5_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val)
+ static int mv_port_start(struct ata_port *ap);
+ static void mv_port_stop(struct ata_port *ap);
+ static int mv_qc_defer(struct ata_queued_cmd *qc);
+-static void mv_qc_prep(struct ata_queued_cmd *qc);
+-static void mv_qc_prep_iie(struct ata_queued_cmd *qc);
++static enum ata_completion_errors mv_qc_prep(struct ata_queued_cmd *qc);
++static enum ata_completion_errors mv_qc_prep_iie(struct ata_queued_cmd *qc);
+ static unsigned int mv_qc_issue(struct ata_queued_cmd *qc);
+ static int mv_hardreset(struct ata_link *link, unsigned int *class,
+ 			unsigned long deadline);
+@@ -2044,7 +2044,7 @@ static void mv_rw_multi_errata_sata24(struct ata_queued_cmd *qc)
+  *      LOCKING:
+  *      Inherited from caller.
+  */
+-static void mv_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors mv_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	struct ata_port *ap = qc->ap;
+ 	struct mv_port_priv *pp = ap->private_data;
+@@ -2056,15 +2056,15 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
+ 	switch (tf->protocol) {
+ 	case ATA_PROT_DMA:
+ 		if (tf->command == ATA_CMD_DSM)
+-			return;
++			return AC_ERR_OK;
+ 		/* fall-thru */
+ 	case ATA_PROT_NCQ:
+ 		break;	/* continue below */
+ 	case ATA_PROT_PIO:
+ 		mv_rw_multi_errata_sata24(qc);
+-		return;
++		return AC_ERR_OK;
+ 	default:
+-		return;
++		return AC_ERR_OK;
+ 	}
+ 
+ 	/* Fill in command request block
+@@ -2111,12 +2111,10 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
+ 		 * non-NCQ mode are: [RW] STREAM DMA and W DMA FUA EXT, none
+ 		 * of which are defined/used by Linux.  If we get here, this
+ 		 * driver needs work.
+-		 *
+-		 * FIXME: modify libata to give qc_prep a return value and
+-		 * return error here.
+ 		 */
+-		BUG_ON(tf->command);
+-		break;
++		ata_port_err(ap, "%s: unsupported command: %.2x\n", __func__,
++				tf->command);
++		return AC_ERR_INVALID;
+ 	}
+ 	mv_crqb_pack_cmd(cw++, tf->nsect, ATA_REG_NSECT, 0);
+ 	mv_crqb_pack_cmd(cw++, tf->hob_lbal, ATA_REG_LBAL, 0);
+@@ -2129,8 +2127,10 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
+ 	mv_crqb_pack_cmd(cw++, tf->command, ATA_REG_CMD, 1);	/* last */
+ 
+ 	if (!(qc->flags & ATA_QCFLAG_DMAMAP))
+-		return;
++		return AC_ERR_OK;
+ 	mv_fill_sg(qc);
++
++	return AC_ERR_OK;
+ }
+ 
+ /**
+@@ -2145,7 +2145,7 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
+  *      LOCKING:
+  *      Inherited from caller.
+  */
+-static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
++static enum ata_completion_errors mv_qc_prep_iie(struct ata_queued_cmd *qc)
+ {
+ 	struct ata_port *ap = qc->ap;
+ 	struct mv_port_priv *pp = ap->private_data;
+@@ -2156,9 +2156,9 @@ static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
+ 
+ 	if ((tf->protocol != ATA_PROT_DMA) &&
+ 	    (tf->protocol != ATA_PROT_NCQ))
+-		return;
++		return AC_ERR_OK;
+ 	if (tf->command == ATA_CMD_DSM)
+-		return;  /* use bmdma for this */
++		return AC_ERR_OK;  /* use bmdma for this */
+ 
+ 	/* Fill in Gen IIE command request block */
+ 	if (!(tf->flags & ATA_TFLAG_WRITE))
+@@ -2199,8 +2199,10 @@ static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
+ 		);
+ 
+ 	if (!(qc->flags & ATA_QCFLAG_DMAMAP))
+-		return;
++		return AC_ERR_OK;
+ 	mv_fill_sg(qc);
++
++	return AC_ERR_OK;
+ }
+ 
+ /**
+diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
+index 734f563b8d37b..bb098c4ae1775 100644
+--- a/drivers/ata/sata_nv.c
++++ b/drivers/ata/sata_nv.c
+@@ -313,7 +313,7 @@ static void nv_ck804_freeze(struct ata_port *ap);
+ static void nv_ck804_thaw(struct ata_port *ap);
+ static int nv_adma_slave_config(struct scsi_device *sdev);
+ static int nv_adma_check_atapi_dma(struct ata_queued_cmd *qc);
+-static void nv_adma_qc_prep(struct ata_queued_cmd *qc);
++static enum ata_completion_errors nv_adma_qc_prep(struct ata_queued_cmd *qc);
+ static unsigned int nv_adma_qc_issue(struct ata_queued_cmd *qc);
+ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance);
+ static void nv_adma_irq_clear(struct ata_port *ap);
+@@ -335,7 +335,7 @@ static void nv_mcp55_freeze(struct ata_port *ap);
+ static void nv_swncq_error_handler(struct ata_port *ap);
+ static int nv_swncq_slave_config(struct scsi_device *sdev);
+ static int nv_swncq_port_start(struct ata_port *ap);
+-static void nv_swncq_qc_prep(struct ata_queued_cmd *qc);
++static enum ata_completion_errors nv_swncq_qc_prep(struct ata_queued_cmd *qc);
+ static void nv_swncq_fill_sg(struct ata_queued_cmd *qc);
+ static unsigned int nv_swncq_qc_issue(struct ata_queued_cmd *qc);
+ static void nv_swncq_irq_clear(struct ata_port *ap, u16 fis);
+@@ -1382,7 +1382,7 @@ static int nv_adma_use_reg_mode(struct ata_queued_cmd *qc)
+ 	return 1;
+ }
+ 
+-static void nv_adma_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors nv_adma_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	struct nv_adma_port_priv *pp = qc->ap->private_data;
+ 	struct nv_adma_cpb *cpb = &pp->cpb[qc->tag];
+@@ -1394,7 +1394,7 @@ static void nv_adma_qc_prep(struct ata_queued_cmd *qc)
+ 			(qc->flags & ATA_QCFLAG_DMAMAP));
+ 		nv_adma_register_mode(qc->ap);
+ 		ata_bmdma_qc_prep(qc);
+-		return;
++		return AC_ERR_OK;
+ 	}
+ 
+ 	cpb->resp_flags = NV_CPB_RESP_DONE;
+@@ -1426,6 +1426,8 @@ static void nv_adma_qc_prep(struct ata_queued_cmd *qc)
+ 	cpb->ctl_flags = ctl_flags;
+ 	wmb();
+ 	cpb->resp_flags = 0;
++
++	return AC_ERR_OK;
+ }
+ 
+ static unsigned int nv_adma_qc_issue(struct ata_queued_cmd *qc)
+@@ -1989,17 +1991,19 @@ static int nv_swncq_port_start(struct ata_port *ap)
+ 	return 0;
+ }
+ 
+-static void nv_swncq_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors nv_swncq_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	if (qc->tf.protocol != ATA_PROT_NCQ) {
+ 		ata_bmdma_qc_prep(qc);
+-		return;
++		return AC_ERR_OK;
+ 	}
+ 
+ 	if (!(qc->flags & ATA_QCFLAG_DMAMAP))
+-		return;
++		return AC_ERR_OK;
+ 
+ 	nv_swncq_fill_sg(qc);
++
++	return AC_ERR_OK;
+ }
+ 
+ static void nv_swncq_fill_sg(struct ata_queued_cmd *qc)
+diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
+index 0fa211e2831cd..8ad8b376a642c 100644
+--- a/drivers/ata/sata_promise.c
++++ b/drivers/ata/sata_promise.c
+@@ -155,7 +155,7 @@ static int pdc_sata_scr_write(struct ata_link *link, unsigned int sc_reg, u32 va
+ static int pdc_ata_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
+ static int pdc_common_port_start(struct ata_port *ap);
+ static int pdc_sata_port_start(struct ata_port *ap);
+-static void pdc_qc_prep(struct ata_queued_cmd *qc);
++static enum ata_completion_errors pdc_qc_prep(struct ata_queued_cmd *qc);
+ static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
+ static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
+ static int pdc_check_atapi_dma(struct ata_queued_cmd *qc);
+@@ -649,7 +649,7 @@ static void pdc_fill_sg(struct ata_queued_cmd *qc)
+ 	prd[idx - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT);
+ }
+ 
+-static void pdc_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors pdc_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	struct pdc_port_priv *pp = qc->ap->private_data;
+ 	unsigned int i;
+@@ -681,6 +681,8 @@ static void pdc_qc_prep(struct ata_queued_cmd *qc)
+ 	default:
+ 		break;
+ 	}
++
++	return AC_ERR_OK;
+ }
+ 
+ static int pdc_is_sataii_tx4(unsigned long flags)
+diff --git a/drivers/ata/sata_qstor.c b/drivers/ata/sata_qstor.c
+index af987a4f33d19..80ff3bbfc8269 100644
+--- a/drivers/ata/sata_qstor.c
++++ b/drivers/ata/sata_qstor.c
+@@ -116,7 +116,7 @@ static int qs_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
+ static int qs_ata_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
+ static int qs_port_start(struct ata_port *ap);
+ static void qs_host_stop(struct ata_host *host);
+-static void qs_qc_prep(struct ata_queued_cmd *qc);
++static enum ata_completion_errors qs_qc_prep(struct ata_queued_cmd *qc);
+ static unsigned int qs_qc_issue(struct ata_queued_cmd *qc);
+ static int qs_check_atapi_dma(struct ata_queued_cmd *qc);
+ static void qs_freeze(struct ata_port *ap);
+@@ -276,7 +276,7 @@ static unsigned int qs_fill_sg(struct ata_queued_cmd *qc)
+ 	return si;
+ }
+ 
+-static void qs_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors qs_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	struct qs_port_priv *pp = qc->ap->private_data;
+ 	u8 dflags = QS_DF_PORD, *buf = pp->pkt;
+@@ -288,7 +288,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
+ 
+ 	qs_enter_reg_mode(qc->ap);
+ 	if (qc->tf.protocol != ATA_PROT_DMA)
+-		return;
++		return AC_ERR_OK;
+ 
+ 	nelem = qs_fill_sg(qc);
+ 
+@@ -311,6 +311,8 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
+ 
+ 	/* frame information structure (FIS) */
+ 	ata_tf_to_fis(&qc->tf, 0, 1, &buf[32]);
++
++	return AC_ERR_OK;
+ }
+ 
+ static inline void qs_packet_start(struct ata_queued_cmd *qc)
+diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c
+index 07e146b772ead..301419325b975 100644
+--- a/drivers/ata/sata_rcar.c
++++ b/drivers/ata/sata_rcar.c
+@@ -551,12 +551,14 @@ static void sata_rcar_bmdma_fill_sg(struct ata_queued_cmd *qc)
+ 	prd[si - 1].addr |= cpu_to_le32(SATA_RCAR_DTEND);
+ }
+ 
+-static void sata_rcar_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors sata_rcar_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	if (!(qc->flags & ATA_QCFLAG_DMAMAP))
+-		return;
++		return AC_ERR_OK;
+ 
+ 	sata_rcar_bmdma_fill_sg(qc);
++
++	return AC_ERR_OK;
+ }
+ 
+ static void sata_rcar_bmdma_setup(struct ata_queued_cmd *qc)
+diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
+index 29bcff086bced..73156a301912f 100644
+--- a/drivers/ata/sata_sil.c
++++ b/drivers/ata/sata_sil.c
+@@ -119,7 +119,7 @@ static void sil_dev_config(struct ata_device *dev);
+ static int sil_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
+ static int sil_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
+ static int sil_set_mode(struct ata_link *link, struct ata_device **r_failed);
+-static void sil_qc_prep(struct ata_queued_cmd *qc);
++static enum ata_completion_errors sil_qc_prep(struct ata_queued_cmd *qc);
+ static void sil_bmdma_setup(struct ata_queued_cmd *qc);
+ static void sil_bmdma_start(struct ata_queued_cmd *qc);
+ static void sil_bmdma_stop(struct ata_queued_cmd *qc);
+@@ -333,12 +333,14 @@ static void sil_fill_sg(struct ata_queued_cmd *qc)
+ 		last_prd->flags_len |= cpu_to_le32(ATA_PRD_EOT);
+ }
+ 
+-static void sil_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors sil_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	if (!(qc->flags & ATA_QCFLAG_DMAMAP))
+-		return;
++		return AC_ERR_OK;
+ 
+ 	sil_fill_sg(qc);
++
++	return AC_ERR_OK;
+ }
+ 
+ static unsigned char sil_get_device_cache_line(struct pci_dev *pdev)
+diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
+index 4b1995e2d044b..ffa3bf724054d 100644
+--- a/drivers/ata/sata_sil24.c
++++ b/drivers/ata/sata_sil24.c
+@@ -336,7 +336,7 @@ static void sil24_dev_config(struct ata_device *dev);
+ static int sil24_scr_read(struct ata_link *link, unsigned sc_reg, u32 *val);
+ static int sil24_scr_write(struct ata_link *link, unsigned sc_reg, u32 val);
+ static int sil24_qc_defer(struct ata_queued_cmd *qc);
+-static void sil24_qc_prep(struct ata_queued_cmd *qc);
++static enum ata_completion_errors sil24_qc_prep(struct ata_queued_cmd *qc);
+ static unsigned int sil24_qc_issue(struct ata_queued_cmd *qc);
+ static bool sil24_qc_fill_rtf(struct ata_queued_cmd *qc);
+ static void sil24_pmp_attach(struct ata_port *ap);
+@@ -840,7 +840,7 @@ static int sil24_qc_defer(struct ata_queued_cmd *qc)
+ 	return ata_std_qc_defer(qc);
+ }
+ 
+-static void sil24_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors sil24_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	struct ata_port *ap = qc->ap;
+ 	struct sil24_port_priv *pp = ap->private_data;
+@@ -884,6 +884,8 @@ static void sil24_qc_prep(struct ata_queued_cmd *qc)
+ 
+ 	if (qc->flags & ATA_QCFLAG_DMAMAP)
+ 		sil24_fill_sg(qc, sge);
++
++	return AC_ERR_OK;
+ }
+ 
+ static unsigned int sil24_qc_issue(struct ata_queued_cmd *qc)
+diff --git a/drivers/ata/sata_sx4.c b/drivers/ata/sata_sx4.c
+index 48301cb3a3165..043953200b52a 100644
+--- a/drivers/ata/sata_sx4.c
++++ b/drivers/ata/sata_sx4.c
+@@ -218,7 +218,7 @@ static void pdc_error_handler(struct ata_port *ap);
+ static void pdc_freeze(struct ata_port *ap);
+ static void pdc_thaw(struct ata_port *ap);
+ static int pdc_port_start(struct ata_port *ap);
+-static void pdc20621_qc_prep(struct ata_queued_cmd *qc);
++static enum ata_completion_errors pdc20621_qc_prep(struct ata_queued_cmd *qc);
+ static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
+ static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
+ static unsigned int pdc20621_dimm_init(struct ata_host *host);
+@@ -546,7 +546,7 @@ static void pdc20621_nodata_prep(struct ata_queued_cmd *qc)
+ 	VPRINTK("ata pkt buf ofs %u, mmio copied\n", i);
+ }
+ 
+-static void pdc20621_qc_prep(struct ata_queued_cmd *qc)
++static enum ata_completion_errors pdc20621_qc_prep(struct ata_queued_cmd *qc)
+ {
+ 	switch (qc->tf.protocol) {
+ 	case ATA_PROT_DMA:
+@@ -558,6 +558,8 @@ static void pdc20621_qc_prep(struct ata_queued_cmd *qc)
+ 	default:
+ 		break;
+ 	}
++
++	return AC_ERR_OK;
+ }
+ 
+ static void __pdc20621_push_hdma(struct ata_queued_cmd *qc,
+diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
+index 88819409e0beb..9d16743c49178 100644
+--- a/drivers/atm/eni.c
++++ b/drivers/atm/eni.c
+@@ -2243,7 +2243,7 @@ static int eni_init_one(struct pci_dev *pci_dev,
+ 
+ 	rc = dma_set_mask_and_coherent(&pci_dev->dev, DMA_BIT_MASK(32));
+ 	if (rc < 0)
+-		goto out;
++		goto err_disable;
+ 
+ 	rc = -ENOMEM;
+ 	eni_dev = kmalloc(sizeof(struct eni_dev), GFP_KERNEL);
+diff --git a/drivers/char/tlclk.c b/drivers/char/tlclk.c
+index 100cd1de9939d..59e1e94d12c01 100644
+--- a/drivers/char/tlclk.c
++++ b/drivers/char/tlclk.c
+@@ -777,17 +777,21 @@ static int __init tlclk_init(void)
+ {
+ 	int ret;
+ 
++	telclk_interrupt = (inb(TLCLK_REG7) & 0x0f);
++
++	alarm_events = kzalloc( sizeof(struct tlclk_alarms), GFP_KERNEL);
++	if (!alarm_events) {
++		ret = -ENOMEM;
++		goto out1;
++	}
++
+ 	ret = register_chrdev(tlclk_major, "telco_clock", &tlclk_fops);
+ 	if (ret < 0) {
+ 		printk(KERN_ERR "tlclk: can't get major %d.\n", tlclk_major);
++		kfree(alarm_events);
+ 		return ret;
+ 	}
+ 	tlclk_major = ret;
+-	alarm_events = kzalloc( sizeof(struct tlclk_alarms), GFP_KERNEL);
+-	if (!alarm_events) {
+-		ret = -ENOMEM;
+-		goto out1;
+-	}
+ 
+ 	/* Read telecom clock IRQ number (Set by BIOS) */
+ 	if (!request_region(TLCLK_BASE, 8, "telco_clock")) {
+@@ -796,7 +800,6 @@ static int __init tlclk_init(void)
+ 		ret = -EBUSY;
+ 		goto out2;
+ 	}
+-	telclk_interrupt = (inb(TLCLK_REG7) & 0x0f);
+ 
+ 	if (0x0F == telclk_interrupt ) { /* not MCPBL0010 ? */
+ 		printk(KERN_ERR "telclk_interrupt = 0x%x non-mcpbl0010 hw.\n",
+@@ -837,8 +840,8 @@ out3:
+ 	release_region(TLCLK_BASE, 8);
+ out2:
+ 	kfree(alarm_events);
+-out1:
+ 	unregister_chrdev(tlclk_major, "telco_clock");
++out1:
+ 	return ret;
+ }
+ 
+diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
+index 84eca4f93b828..0fad6cf37bab4 100644
+--- a/drivers/char/tpm/tpm_ibmvtpm.c
++++ b/drivers/char/tpm/tpm_ibmvtpm.c
+@@ -550,6 +550,7 @@ static irqreturn_t ibmvtpm_interrupt(int irq, void *vtpm_instance)
+ 	 */
+ 	while ((crq = ibmvtpm_crq_get_next(ibmvtpm)) != NULL) {
+ 		ibmvtpm_crq_process(crq, ibmvtpm);
++		wake_up_interruptible(&ibmvtpm->crq_queue.wq);
+ 		crq->valid = 0;
+ 		smp_wmb();
+ 	}
+@@ -596,6 +597,7 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
+ 	}
+ 
+ 	crq_q->num_entry = CRQ_RES_BUF_SIZE / sizeof(*crq_q->crq_addr);
++	init_waitqueue_head(&crq_q->wq);
+ 	ibmvtpm->crq_dma_handle = dma_map_single(dev, crq_q->crq_addr,
+ 						 CRQ_RES_BUF_SIZE,
+ 						 DMA_BIDIRECTIONAL);
+@@ -648,6 +650,13 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
+ 	if (rc)
+ 		goto init_irq_cleanup;
+ 
++	if (!wait_event_timeout(ibmvtpm->crq_queue.wq,
++				ibmvtpm->rtce_buf != NULL,
++				HZ)) {
++		dev_err(dev, "CRQ response timed out\n");
++		goto init_irq_cleanup;
++	}
++
+ 	return tpm_chip_register(chip);
+ init_irq_cleanup:
+ 	do {
+diff --git a/drivers/char/tpm/tpm_ibmvtpm.h b/drivers/char/tpm/tpm_ibmvtpm.h
+index 91dfe766d0800..4f6a124601db4 100644
+--- a/drivers/char/tpm/tpm_ibmvtpm.h
++++ b/drivers/char/tpm/tpm_ibmvtpm.h
+@@ -31,6 +31,7 @@ struct ibmvtpm_crq_queue {
+ 	struct ibmvtpm_crq *crq_addr;
+ 	u32 index;
+ 	u32 num_entry;
++	wait_queue_head_t wq;
+ };
+ 
+ struct ibmvtpm_dev {
+diff --git a/drivers/clk/ti/adpll.c b/drivers/clk/ti/adpll.c
+index 255cafb18336a..9345eaf00938e 100644
+--- a/drivers/clk/ti/adpll.c
++++ b/drivers/clk/ti/adpll.c
+@@ -193,15 +193,8 @@ static const char *ti_adpll_clk_get_name(struct ti_adpll_data *d,
+ 		if (err)
+ 			return NULL;
+ 	} else {
+-		const char *base_name = "adpll";
+-		char *buf;
+-
+-		buf = devm_kzalloc(d->dev, 8 + 1 + strlen(base_name) + 1 +
+-				    strlen(postfix), GFP_KERNEL);
+-		if (!buf)
+-			return NULL;
+-		sprintf(buf, "%08lx.%s.%s", d->pa, base_name, postfix);
+-		name = buf;
++		name = devm_kasprintf(d->dev, GFP_KERNEL, "%08lx.adpll.%s",
++				      d->pa, postfix);
+ 	}
+ 
+ 	return name;
+diff --git a/drivers/clocksource/h8300_timer8.c b/drivers/clocksource/h8300_timer8.c
+index 546bb180f5a44..8202e49ac64cd 100644
+--- a/drivers/clocksource/h8300_timer8.c
++++ b/drivers/clocksource/h8300_timer8.c
+@@ -176,7 +176,7 @@ static int __init h8300_8timer_init(struct device_node *node)
+ 		return PTR_ERR(clk);
+ 	}
+ 
+-	ret = ENXIO;
++	ret = -ENXIO;
+ 	base = of_iomap(node, 0);
+ 	if (!base) {
+ 		pr_err("failed to map registers for clockevent\n");
+diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c
+index b4fc65512aad3..c3b05676e0dbe 100644
+--- a/drivers/cpufreq/powernv-cpufreq.c
++++ b/drivers/cpufreq/powernv-cpufreq.c
+@@ -802,6 +802,7 @@ static struct notifier_block powernv_cpufreq_reboot_nb = {
+ void powernv_cpufreq_work_fn(struct work_struct *work)
+ {
+ 	struct chip *chip = container_of(work, struct chip, throttle);
++	struct cpufreq_policy *policy;
+ 	unsigned int cpu;
+ 	cpumask_t mask;
+ 
+@@ -816,12 +817,14 @@ void powernv_cpufreq_work_fn(struct work_struct *work)
+ 	chip->restore = false;
+ 	for_each_cpu(cpu, &mask) {
+ 		int index;
+-		struct cpufreq_policy policy;
+ 
+-		cpufreq_get_policy(&policy, cpu);
+-		index = cpufreq_table_find_index_c(&policy, policy.cur);
+-		powernv_cpufreq_target_index(&policy, index);
+-		cpumask_andnot(&mask, &mask, policy.cpus);
++		policy = cpufreq_cpu_get(cpu);
++		if (!policy)
++			continue;
++		index = cpufreq_table_find_index_c(policy, policy->cur);
++		powernv_cpufreq_target_index(policy, index);
++		cpumask_andnot(&mask, &mask, policy->cpus);
++		cpufreq_cpu_put(policy);
+ 	}
+ out:
+ 	put_online_cpus();
+diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
+index fe9dce0245bf0..a20267d93f8a4 100644
+--- a/drivers/devfreq/tegra-devfreq.c
++++ b/drivers/devfreq/tegra-devfreq.c
+@@ -79,6 +79,8 @@
+ 
+ #define KHZ							1000
+ 
++#define KHZ_MAX						(ULONG_MAX / KHZ)
++
+ /* Assume that the bus is saturated if the utilization is 25% */
+ #define BUS_SATURATION_RATIO					25
+ 
+@@ -179,7 +181,7 @@ struct tegra_actmon_emc_ratio {
+ };
+ 
+ static struct tegra_actmon_emc_ratio actmon_emc_ratios[] = {
+-	{ 1400000, ULONG_MAX },
++	{ 1400000,    KHZ_MAX },
+ 	{ 1200000,    750000 },
+ 	{ 1100000,    600000 },
+ 	{ 1000000,    500000 },
+diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
+index 4eaf92b2b8868..909739426f78c 100644
+--- a/drivers/dma/tegra20-apb-dma.c
++++ b/drivers/dma/tegra20-apb-dma.c
+@@ -1208,8 +1208,7 @@ static void tegra_dma_free_chan_resources(struct dma_chan *dc)
+ 
+ 	dev_dbg(tdc2dev(tdc), "Freeing channel %d\n", tdc->id);
+ 
+-	if (tdc->busy)
+-		tegra_dma_terminate_all(dc);
++	tegra_dma_terminate_all(dc);
+ 
+ 	spin_lock_irqsave(&tdc->lock, flags);
+ 	list_splice_init(&tdc->pending_sg_req, &sg_req_list);
+diff --git a/drivers/dma/xilinx/zynqmp_dma.c b/drivers/dma/xilinx/zynqmp_dma.c
+index 9069fb8543196..514763dcc3758 100644
+--- a/drivers/dma/xilinx/zynqmp_dma.c
++++ b/drivers/dma/xilinx/zynqmp_dma.c
+@@ -125,10 +125,12 @@
+ /* Max transfer size per descriptor */
+ #define ZYNQMP_DMA_MAX_TRANS_LEN	0x40000000
+ 
++/* Max burst lengths */
++#define ZYNQMP_DMA_MAX_DST_BURST_LEN    32768U
++#define ZYNQMP_DMA_MAX_SRC_BURST_LEN    32768U
++
+ /* Reset values for data attributes */
+ #define ZYNQMP_DMA_AXCACHE_VAL		0xF
+-#define ZYNQMP_DMA_ARLEN_RST_VAL	0xF
+-#define ZYNQMP_DMA_AWLEN_RST_VAL	0xF
+ 
+ #define ZYNQMP_DMA_SRC_ISSUE_RST_VAL	0x1F
+ 
+@@ -527,17 +529,19 @@ static void zynqmp_dma_handle_ovfl_int(struct zynqmp_dma_chan *chan, u32 status)
+ 
+ static void zynqmp_dma_config(struct zynqmp_dma_chan *chan)
+ {
+-	u32 val;
++	u32 val, burst_val;
+ 
+ 	val = readl(chan->regs + ZYNQMP_DMA_CTRL0);
+ 	val |= ZYNQMP_DMA_POINT_TYPE_SG;
+ 	writel(val, chan->regs + ZYNQMP_DMA_CTRL0);
+ 
+ 	val = readl(chan->regs + ZYNQMP_DMA_DATA_ATTR);
++	burst_val = __ilog2_u32(chan->src_burst_len);
+ 	val = (val & ~ZYNQMP_DMA_ARLEN) |
+-		(chan->src_burst_len << ZYNQMP_DMA_ARLEN_OFST);
++		((burst_val << ZYNQMP_DMA_ARLEN_OFST) & ZYNQMP_DMA_ARLEN);
++	burst_val = __ilog2_u32(chan->dst_burst_len);
+ 	val = (val & ~ZYNQMP_DMA_AWLEN) |
+-		(chan->dst_burst_len << ZYNQMP_DMA_AWLEN_OFST);
++		((burst_val << ZYNQMP_DMA_AWLEN_OFST) & ZYNQMP_DMA_AWLEN);
+ 	writel(val, chan->regs + ZYNQMP_DMA_DATA_ATTR);
+ }
+ 
+@@ -551,8 +555,10 @@ static int zynqmp_dma_device_config(struct dma_chan *dchan,
+ {
+ 	struct zynqmp_dma_chan *chan = to_chan(dchan);
+ 
+-	chan->src_burst_len = config->src_maxburst;
+-	chan->dst_burst_len = config->dst_maxburst;
++	chan->src_burst_len = clamp(config->src_maxburst, 1U,
++		ZYNQMP_DMA_MAX_SRC_BURST_LEN);
++	chan->dst_burst_len = clamp(config->dst_maxburst, 1U,
++		ZYNQMP_DMA_MAX_DST_BURST_LEN);
+ 
+ 	return 0;
+ }
+@@ -968,8 +974,8 @@ static int zynqmp_dma_chan_probe(struct zynqmp_dma_device *zdev,
+ 		return PTR_ERR(chan->regs);
+ 
+ 	chan->bus_width = ZYNQMP_DMA_BUS_WIDTH_64;
+-	chan->dst_burst_len = ZYNQMP_DMA_AWLEN_RST_VAL;
+-	chan->src_burst_len = ZYNQMP_DMA_ARLEN_RST_VAL;
++	chan->dst_burst_len = ZYNQMP_DMA_MAX_DST_BURST_LEN;
++	chan->src_burst_len = ZYNQMP_DMA_MAX_SRC_BURST_LEN;
+ 	err = of_property_read_u32(node, "xlnx,bus-width", &chan->bus_width);
+ 	if (err < 0) {
+ 		dev_err(&pdev->dev, "missing xlnx,bus-width property\n");
+diff --git a/drivers/gpu/drm/amd/amdgpu/atom.c b/drivers/gpu/drm/amd/amdgpu/atom.c
+index 1b50e6c13fb3f..5fbf99d600587 100644
+--- a/drivers/gpu/drm/amd/amdgpu/atom.c
++++ b/drivers/gpu/drm/amd/amdgpu/atom.c
+@@ -748,8 +748,8 @@ static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
+ 			cjiffies = jiffies;
+ 			if (time_after(cjiffies, ctx->last_jump_jiffies)) {
+ 				cjiffies -= ctx->last_jump_jiffies;
+-				if ((jiffies_to_msecs(cjiffies) > 5000)) {
+-					DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n");
++				if ((jiffies_to_msecs(cjiffies) > 10000)) {
++					DRM_ERROR("atombios stuck in loop for more than 10secs aborting\n");
+ 					ctx->abort = true;
+ 				}
+ 			} else {
+diff --git a/drivers/gpu/drm/gma500/cdv_intel_display.c b/drivers/gpu/drm/gma500/cdv_intel_display.c
+index 17db4b4749d5a..2e8479744ca4a 100644
+--- a/drivers/gpu/drm/gma500/cdv_intel_display.c
++++ b/drivers/gpu/drm/gma500/cdv_intel_display.c
+@@ -415,6 +415,8 @@ static bool cdv_intel_find_dp_pll(const struct gma_limit_t *limit,
+ 	struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
+ 	struct gma_clock_t clock;
+ 
++	memset(&clock, 0, sizeof(clock));
++
+ 	switch (refclk) {
+ 	case 27000:
+ 		if (target < 200000) {
+diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c b/drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c
+index 136d30484d023..46111e9ee9a25 100644
+--- a/drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c
++++ b/drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c
+@@ -194,7 +194,7 @@ static int __init omapdss_boot_init(void)
+ 	dss = of_find_matching_node(NULL, omapdss_of_match);
+ 
+ 	if (dss == NULL || !of_device_is_available(dss))
+-		return 0;
++		goto put_node;
+ 
+ 	omapdss_walk_device(dss, true);
+ 
+@@ -219,6 +219,8 @@ static int __init omapdss_boot_init(void)
+ 		kfree(n);
+ 	}
+ 
++put_node:
++	of_node_put(dss);
+ 	return 0;
+ }
+ 
+diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
+index 80d82c6792d8d..4fd7bfda2f9de 100644
+--- a/drivers/i2c/i2c-core.c
++++ b/drivers/i2c/i2c-core.c
+@@ -1858,8 +1858,8 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
+ 
+ 	/* create pre-declared device nodes */
+ 	of_i2c_register_devices(adap);
+-	i2c_acpi_register_devices(adap);
+ 	i2c_acpi_install_space_handler(adap);
++	i2c_acpi_register_devices(adap);
+ 
+ 	if (adap->nr < __i2c_first_dynamic_bus_num)
+ 		i2c_scan_static_board_info(adap);
+diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
+index a4f4cd4932657..bb0d728f4b76f 100644
+--- a/drivers/infiniband/core/ucma.c
++++ b/drivers/infiniband/core/ucma.c
+@@ -1296,13 +1296,13 @@ static ssize_t ucma_set_option(struct ucma_file *file, const char __user *inbuf,
+ 	if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+ 		return -EFAULT;
+ 
++	if (unlikely(cmd.optlen > KMALLOC_MAX_SIZE))
++		return -EINVAL;
++
+ 	ctx = ucma_get_ctx(file, cmd.id);
+ 	if (IS_ERR(ctx))
+ 		return PTR_ERR(ctx);
+ 
+-	if (unlikely(cmd.optlen > KMALLOC_MAX_SIZE))
+-		return -EINVAL;
+-
+ 	optval = memdup_user((void __user *) (unsigned long) cmd.optval,
+ 			     cmd.optlen);
+ 	if (IS_ERR(optval)) {
+diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
+index a04a53acb24ff..a60e1c1b4b5e8 100644
+--- a/drivers/infiniband/hw/cxgb4/cm.c
++++ b/drivers/infiniband/hw/cxgb4/cm.c
+@@ -3245,7 +3245,7 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
+ 		if (raddr->sin_addr.s_addr == htonl(INADDR_ANY)) {
+ 			err = pick_local_ipaddrs(dev, cm_id);
+ 			if (err)
+-				goto fail2;
++				goto fail3;
+ 		}
+ 
+ 		/* find a route */
+@@ -3267,7 +3267,7 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
+ 		if (ipv6_addr_type(&raddr6->sin6_addr) == IPV6_ADDR_ANY) {
+ 			err = pick_local_ip6addrs(dev, cm_id);
+ 			if (err)
+-				goto fail2;
++				goto fail3;
+ 		}
+ 
+ 		/* find a route */
+diff --git a/drivers/infiniband/hw/i40iw/i40iw_cm.c b/drivers/infiniband/hw/i40iw/i40iw_cm.c
+index 282a726351c81..ce1a4817ab923 100644
+--- a/drivers/infiniband/hw/i40iw/i40iw_cm.c
++++ b/drivers/infiniband/hw/i40iw/i40iw_cm.c
+@@ -2036,9 +2036,9 @@ static int i40iw_addr_resolve_neigh_ipv6(struct i40iw_device *iwdev,
+ 	dst = i40iw_get_dst_ipv6(&src_addr, &dst_addr);
+ 	if (!dst || dst->error) {
+ 		if (dst) {
+-			dst_release(dst);
+ 			i40iw_pr_err("ip6_route_output returned dst->error = %d\n",
+ 				     dst->error);
++			dst_release(dst);
+ 		}
+ 		return rc;
+ 	}
+diff --git a/drivers/infiniband/sw/rxe/rxe_qp.c b/drivers/infiniband/sw/rxe/rxe_qp.c
+index d6672127808b7..186da467060cc 100644
+--- a/drivers/infiniband/sw/rxe/rxe_qp.c
++++ b/drivers/infiniband/sw/rxe/rxe_qp.c
+@@ -597,15 +597,16 @@ int rxe_qp_from_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask,
+ 	struct ib_gid_attr sgid_attr;
+ 
+ 	if (mask & IB_QP_MAX_QP_RD_ATOMIC) {
+-		int max_rd_atomic = __roundup_pow_of_two(attr->max_rd_atomic);
++		int max_rd_atomic = attr->max_rd_atomic ?
++			roundup_pow_of_two(attr->max_rd_atomic) : 0;
+ 
+ 		qp->attr.max_rd_atomic = max_rd_atomic;
+ 		atomic_set(&qp->req.rd_atomic, max_rd_atomic);
+ 	}
+ 
+ 	if (mask & IB_QP_MAX_DEST_RD_ATOMIC) {
+-		int max_dest_rd_atomic =
+-			__roundup_pow_of_two(attr->max_dest_rd_atomic);
++		int max_dest_rd_atomic = attr->max_dest_rd_atomic ?
++			roundup_pow_of_two(attr->max_dest_rd_atomic) : 0;
+ 
+ 		qp->attr.max_dest_rd_atomic = max_dest_rd_atomic;
+ 
+diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
+index 7fe7df56fa334..f0939fc1cfe55 100644
+--- a/drivers/md/bcache/bcache.h
++++ b/drivers/md/bcache/bcache.h
+@@ -547,6 +547,7 @@ struct cache_set {
+ 	 */
+ 	wait_queue_head_t	btree_cache_wait;
+ 	struct task_struct	*btree_cache_alloc_lock;
++	spinlock_t		btree_cannibalize_lock;
+ 
+ 	/*
+ 	 * When we free a btree node, we increment the gen of the bucket the
+diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
+index 764d519a7f1c6..26e56a9952d09 100644
+--- a/drivers/md/bcache/btree.c
++++ b/drivers/md/bcache/btree.c
+@@ -836,15 +836,17 @@ out:
+ 
+ static int mca_cannibalize_lock(struct cache_set *c, struct btree_op *op)
+ {
+-	struct task_struct *old;
+-
+-	old = cmpxchg(&c->btree_cache_alloc_lock, NULL, current);
+-	if (old && old != current) {
++	spin_lock(&c->btree_cannibalize_lock);
++	if (likely(c->btree_cache_alloc_lock == NULL)) {
++		c->btree_cache_alloc_lock = current;
++	} else if (c->btree_cache_alloc_lock != current) {
+ 		if (op)
+ 			prepare_to_wait(&c->btree_cache_wait, &op->wait,
+ 					TASK_UNINTERRUPTIBLE);
++		spin_unlock(&c->btree_cannibalize_lock);
+ 		return -EINTR;
+ 	}
++	spin_unlock(&c->btree_cannibalize_lock);
+ 
+ 	return 0;
+ }
+@@ -879,10 +881,12 @@ static struct btree *mca_cannibalize(struct cache_set *c, struct btree_op *op,
+  */
+ static void bch_cannibalize_unlock(struct cache_set *c)
+ {
++	spin_lock(&c->btree_cannibalize_lock);
+ 	if (c->btree_cache_alloc_lock == current) {
+ 		c->btree_cache_alloc_lock = NULL;
+ 		wake_up(&c->btree_cache_wait);
+ 	}
++	spin_unlock(&c->btree_cannibalize_lock);
+ }
+ 
+ static struct btree *mca_alloc(struct cache_set *c, struct btree_op *op,
+diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
+index 95e9a33de06a2..263c0d987929e 100644
+--- a/drivers/md/bcache/super.c
++++ b/drivers/md/bcache/super.c
+@@ -1510,6 +1510,7 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
+ 	sema_init(&c->sb_write_mutex, 1);
+ 	mutex_init(&c->bucket_lock);
+ 	init_waitqueue_head(&c->btree_cache_wait);
++	spin_lock_init(&c->btree_cannibalize_lock);
+ 	init_waitqueue_head(&c->bucket_wait);
+ 	init_waitqueue_head(&c->gc_wait);
+ 	sema_init(&c->uuid_write_mutex, 1);
+diff --git a/drivers/media/dvb-frontends/tda10071.c b/drivers/media/dvb-frontends/tda10071.c
+index 37ebeef2bbd0b..43343091ea93e 100644
+--- a/drivers/media/dvb-frontends/tda10071.c
++++ b/drivers/media/dvb-frontends/tda10071.c
+@@ -483,10 +483,11 @@ static int tda10071_read_status(struct dvb_frontend *fe, enum fe_status *status)
+ 			goto error;
+ 
+ 		if (dev->delivery_system == SYS_DVBS) {
+-			dev->dvbv3_ber = buf[0] << 24 | buf[1] << 16 |
+-					 buf[2] << 8 | buf[3] << 0;
+-			dev->post_bit_error += buf[0] << 24 | buf[1] << 16 |
+-					       buf[2] << 8 | buf[3] << 0;
++			u32 bit_error = buf[0] << 24 | buf[1] << 16 |
++					buf[2] << 8 | buf[3] << 0;
++
++			dev->dvbv3_ber = bit_error;
++			dev->post_bit_error += bit_error;
+ 			c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+ 			c->post_bit_error.stat[0].uvalue = dev->post_bit_error;
+ 			dev->block_error += buf[4] << 8 | buf[5] << 0;
+diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c
+index 563b9636ab63b..803e0794ca131 100644
+--- a/drivers/media/platform/ti-vpe/cal.c
++++ b/drivers/media/platform/ti-vpe/cal.c
+@@ -690,12 +690,13 @@ static void pix_proc_config(struct cal_ctx *ctx)
+ }
+ 
+ static void cal_wr_dma_config(struct cal_ctx *ctx,
+-			      unsigned int width)
++			      unsigned int width, unsigned int height)
+ {
+ 	u32 val;
+ 
+ 	val = reg_read(ctx->dev, CAL_WR_DMA_CTRL(ctx->csi2_port));
+ 	set_field(&val, ctx->csi2_port, CAL_WR_DMA_CTRL_CPORT_MASK);
++	set_field(&val, height, CAL_WR_DMA_CTRL_YSIZE_MASK);
+ 	set_field(&val, CAL_WR_DMA_CTRL_DTAG_PIX_DAT,
+ 		  CAL_WR_DMA_CTRL_DTAG_MASK);
+ 	set_field(&val, CAL_WR_DMA_CTRL_MODE_CONST,
+@@ -1321,7 +1322,8 @@ static int cal_start_streaming(struct vb2_queue *vq, unsigned int count)
+ 	csi2_lane_config(ctx);
+ 	csi2_ctx_config(ctx);
+ 	pix_proc_config(ctx);
+-	cal_wr_dma_config(ctx, ctx->v_fmt.fmt.pix.bytesperline);
++	cal_wr_dma_config(ctx, ctx->v_fmt.fmt.pix.bytesperline,
++			  ctx->v_fmt.fmt.pix.height);
+ 	cal_wr_dma_addr(ctx, addr);
+ 	csi2_ppi_enable(ctx);
+ 
+diff --git a/drivers/media/usb/go7007/go7007-usb.c b/drivers/media/usb/go7007/go7007-usb.c
+index ed9bcaf08d5ec..ddfaabd4c0813 100644
+--- a/drivers/media/usb/go7007/go7007-usb.c
++++ b/drivers/media/usb/go7007/go7007-usb.c
+@@ -1052,6 +1052,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
+ 	struct go7007_usb *usb;
+ 	const struct go7007_usb_board *board;
+ 	struct usb_device *usbdev = interface_to_usbdev(intf);
++	struct usb_host_endpoint *ep;
+ 	unsigned num_i2c_devs;
+ 	char *name;
+ 	int video_pipe, i, v_urb_len;
+@@ -1147,7 +1148,8 @@ static int go7007_usb_probe(struct usb_interface *intf,
+ 	if (usb->intr_urb->transfer_buffer == NULL)
+ 		goto allocfail;
+ 
+-	if (go->board_id == GO7007_BOARDID_SENSORAY_2250)
++	ep = usb->usbdev->ep_in[4];
++	if (usb_endpoint_type(&ep->desc) == USB_ENDPOINT_XFER_BULK)
+ 		usb_fill_bulk_urb(usb->intr_urb, usb->usbdev,
+ 			usb_rcvbulkpipe(usb->usbdev, 4),
+ 			usb->intr_urb->transfer_buffer, 2*sizeof(u16),
+diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
+index 5c8ed2150c8bf..fb687368ac98c 100644
+--- a/drivers/mfd/mfd-core.c
++++ b/drivers/mfd/mfd-core.c
+@@ -32,6 +32,11 @@ int mfd_cell_enable(struct platform_device *pdev)
+ 	const struct mfd_cell *cell = mfd_get_cell(pdev);
+ 	int err = 0;
+ 
++	if (!cell->enable) {
++		dev_dbg(&pdev->dev, "No .enable() call-back registered\n");
++		return 0;
++	}
++
+ 	/* only call enable hook if the cell wasn't previously enabled */
+ 	if (atomic_inc_return(cell->usage_count) == 1)
+ 		err = cell->enable(pdev);
+@@ -49,6 +54,11 @@ int mfd_cell_disable(struct platform_device *pdev)
+ 	const struct mfd_cell *cell = mfd_get_cell(pdev);
+ 	int err = 0;
+ 
++	if (!cell->disable) {
++		dev_dbg(&pdev->dev, "No .disable() call-back registered\n");
++		return 0;
++	}
++
+ 	/* only disable if no other clients are using it */
+ 	if (atomic_dec_return(cell->usage_count) == 0)
+ 		err = cell->disable(pdev);
+diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
+index 00ba09fa6f16d..3c4819a05bf03 100644
+--- a/drivers/mtd/chips/cfi_cmdset_0002.c
++++ b/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -722,7 +722,6 @@ static struct mtd_info *cfi_amdstd_setup(struct mtd_info *mtd)
+ 	kfree(mtd->eraseregions);
+ 	kfree(mtd);
+ 	kfree(cfi->cmdset_priv);
+-	kfree(cfi->cfiq);
+ 	return NULL;
+ }
+ 
+diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c
+index fbd5affc0acfe..04fd845de05fb 100644
+--- a/drivers/mtd/cmdlinepart.c
++++ b/drivers/mtd/cmdlinepart.c
+@@ -228,12 +228,29 @@ static int mtdpart_setup_real(char *s)
+ 		struct cmdline_mtd_partition *this_mtd;
+ 		struct mtd_partition *parts;
+ 		int mtd_id_len, num_parts;
+-		char *p, *mtd_id;
++		char *p, *mtd_id, *semicol;
++
++		/*
++		 * Replace the first ';' by a NULL char so strrchr can work
++		 * properly.
++		 */
++		semicol = strchr(s, ';');
++		if (semicol)
++			*semicol = '\0';
+ 
+ 		mtd_id = s;
+ 
+-		/* fetch <mtd-id> */
+-		p = strchr(s, ':');
++		/*
++		 * fetch <mtd-id>. We use strrchr to ignore all ':' that could
++		 * be present in the MTD name, only the last one is interpreted
++		 * as an <mtd-id>/<part-definition> separator.
++		 */
++		p = strrchr(s, ':');
++
++		/* Restore the ';' now. */
++		if (semicol)
++			*semicol = ';';
++
+ 		if (!p) {
+ 			pr_err("no mtd-id\n");
+ 			return -EINVAL;
+diff --git a/drivers/mtd/nand/omap_elm.c b/drivers/mtd/nand/omap_elm.c
+index a3f32f939cc17..6736777a41567 100644
+--- a/drivers/mtd/nand/omap_elm.c
++++ b/drivers/mtd/nand/omap_elm.c
+@@ -421,6 +421,7 @@ static int elm_probe(struct platform_device *pdev)
+ 	pm_runtime_enable(&pdev->dev);
+ 	if (pm_runtime_get_sync(&pdev->dev) < 0) {
+ 		ret = -EINVAL;
++		pm_runtime_put_sync(&pdev->dev);
+ 		pm_runtime_disable(&pdev->dev);
+ 		dev_err(&pdev->dev, "can't enable clock\n");
+ 		return ret;
+diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+index ac03bba10e4fd..8634337e1a99d 100644
+--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
++++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+@@ -1000,9 +1000,12 @@ static int bnxt_set_pauseparam(struct net_device *dev,
+ 	if (!BNXT_SINGLE_PF(bp))
+ 		return -EOPNOTSUPP;
+ 
++	mutex_lock(&bp->link_lock);
+ 	if (epause->autoneg) {
+-		if (!(link_info->autoneg & BNXT_AUTONEG_SPEED))
+-			return -EINVAL;
++		if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) {
++			rc = -EINVAL;
++			goto pause_exit;
++		}
+ 
+ 		link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
+ 		if (bp->hwrm_spec_code >= 0x10201)
+@@ -1023,11 +1026,11 @@ static int bnxt_set_pauseparam(struct net_device *dev,
+ 	if (epause->tx_pause)
+ 		link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_TX;
+ 
+-	if (netif_running(dev)) {
+-		mutex_lock(&bp->link_lock);
++	if (netif_running(dev))
+ 		rc = bnxt_hwrm_set_pause(bp);
+-		mutex_unlock(&bp->link_lock);
+-	}
++
++pause_exit:
++	mutex_unlock(&bp->link_lock);
+ 	return rc;
+ }
+ 
+@@ -1671,8 +1674,7 @@ static int bnxt_set_eee(struct net_device *dev, struct ethtool_eee *edata)
+ 	struct bnxt *bp = netdev_priv(dev);
+ 	struct ethtool_eee *eee = &bp->eee;
+ 	struct bnxt_link_info *link_info = &bp->link_info;
+-	u32 advertising =
+-		 _bnxt_fw_to_ethtool_adv_spds(link_info->advertising, 0);
++	u32 advertising;
+ 	int rc = 0;
+ 
+ 	if (!BNXT_SINGLE_PF(bp))
+@@ -1681,19 +1683,23 @@ static int bnxt_set_eee(struct net_device *dev, struct ethtool_eee *edata)
+ 	if (!(bp->flags & BNXT_FLAG_EEE_CAP))
+ 		return -EOPNOTSUPP;
+ 
++	mutex_lock(&bp->link_lock);
++	advertising = _bnxt_fw_to_ethtool_adv_spds(link_info->advertising, 0);
+ 	if (!edata->eee_enabled)
+ 		goto eee_ok;
+ 
+ 	if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) {
+ 		netdev_warn(dev, "EEE requires autoneg\n");
+-		return -EINVAL;
++		rc = -EINVAL;
++		goto eee_exit;
+ 	}
+ 	if (edata->tx_lpi_enabled) {
+ 		if (bp->lpi_tmr_hi && (edata->tx_lpi_timer > bp->lpi_tmr_hi ||
+ 				       edata->tx_lpi_timer < bp->lpi_tmr_lo)) {
+ 			netdev_warn(dev, "Valid LPI timer range is %d and %d microsecs\n",
+ 				    bp->lpi_tmr_lo, bp->lpi_tmr_hi);
+-			return -EINVAL;
++			rc = -EINVAL;
++			goto eee_exit;
+ 		} else if (!bp->lpi_tmr_hi) {
+ 			edata->tx_lpi_timer = eee->tx_lpi_timer;
+ 		}
+@@ -1703,7 +1709,8 @@ static int bnxt_set_eee(struct net_device *dev, struct ethtool_eee *edata)
+ 	} else if (edata->advertised & ~advertising) {
+ 		netdev_warn(dev, "EEE advertised %x must be a subset of autoneg advertised speeds %x\n",
+ 			    edata->advertised, advertising);
+-		return -EINVAL;
++		rc = -EINVAL;
++		goto eee_exit;
+ 	}
+ 
+ 	eee->advertised = edata->advertised;
+@@ -1715,6 +1722,8 @@ eee_ok:
+ 	if (netif_running(dev))
+ 		rc = bnxt_hwrm_set_link_setting(bp, false, true);
+ 
++eee_exit:
++	mutex_unlock(&bp->link_lock);
+ 	return rc;
+ }
+ 
+diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
+index 3b16ee0de246e..c30792b761ee3 100644
+--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
++++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
+@@ -568,8 +568,13 @@ void e1000_reinit_locked(struct e1000_adapter *adapter)
+ 	WARN_ON(in_interrupt());
+ 	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
+ 		msleep(1);
+-	e1000_down(adapter);
+-	e1000_up(adapter);
++
++	/* only run the task if not already down */
++	if (!test_bit(__E1000_DOWN, &adapter->flags)) {
++		e1000_down(adapter);
++		e1000_up(adapter);
++	}
++
+ 	clear_bit(__E1000_RESETTING, &adapter->flags);
+ }
+ 
+@@ -1456,10 +1461,15 @@ int e1000_close(struct net_device *netdev)
+ 	struct e1000_hw *hw = &adapter->hw;
+ 	int count = E1000_CHECK_RESET_COUNT;
+ 
+-	while (test_bit(__E1000_RESETTING, &adapter->flags) && count--)
++	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags) && count--)
+ 		usleep_range(10000, 20000);
+ 
+-	WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
++	WARN_ON(count < 0);
++
++	/* signal that we're down so that the reset task will no longer run */
++	set_bit(__E1000_DOWN, &adapter->flags);
++	clear_bit(__E1000_RESETTING, &adapter->flags);
++
+ 	e1000_down(adapter);
+ 	e1000_power_down_phy(adapter);
+ 	e1000_free_irq(adapter);
+diff --git a/drivers/net/ieee802154/adf7242.c b/drivers/net/ieee802154/adf7242.c
+index 1b980f12663af..a605dfb15bb75 100644
+--- a/drivers/net/ieee802154/adf7242.c
++++ b/drivers/net/ieee802154/adf7242.c
+@@ -834,7 +834,9 @@ static int adf7242_rx(struct adf7242_local *lp)
+ 	int ret;
+ 	u8 lqi, len_u8, *data;
+ 
+-	adf7242_read_reg(lp, 0, &len_u8);
++	ret = adf7242_read_reg(lp, 0, &len_u8);
++	if (ret)
++		return ret;
+ 
+ 	len = len_u8;
+ 
+diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
+index 2f55873060220..a3ba95e96695e 100644
+--- a/drivers/net/phy/phy_device.c
++++ b/drivers/net/phy/phy_device.c
+@@ -1013,7 +1013,8 @@ void phy_detach(struct phy_device *phydev)
+ 	phydev->attached_dev = NULL;
+ 	phy_suspend(phydev);
+ 
+-	module_put(phydev->mdio.dev.driver->owner);
++	if (phydev->mdio.dev.driver)
++		module_put(phydev->mdio.dev.driver->owner);
+ 
+ 	/* If the device had no specific driver before (i.e. - it
+ 	 * was using the generic driver), we unbind the device
+diff --git a/drivers/net/wan/hdlc_ppp.c b/drivers/net/wan/hdlc_ppp.c
+index 8a9aced850be3..63546d1317982 100644
+--- a/drivers/net/wan/hdlc_ppp.c
++++ b/drivers/net/wan/hdlc_ppp.c
+@@ -386,11 +386,8 @@ static void ppp_cp_parse_cr(struct net_device *dev, u16 pid, u8 id,
+ 	}
+ 
+ 	for (opt = data; len; len -= opt[1], opt += opt[1]) {
+-		if (len < 2 || len < opt[1]) {
+-			dev->stats.rx_errors++;
+-			kfree(out);
+-			return; /* bad packet, drop silently */
+-		}
++		if (len < 2 || opt[1] < 2 || len < opt[1])
++			goto err_out;
+ 
+ 		if (pid == PID_LCP)
+ 			switch (opt[0]) {
+@@ -398,6 +395,8 @@ static void ppp_cp_parse_cr(struct net_device *dev, u16 pid, u8 id,
+ 				continue; /* MRU always OK and > 1500 bytes? */
+ 
+ 			case LCP_OPTION_ACCM: /* async control character map */
++				if (opt[1] < sizeof(valid_accm))
++					goto err_out;
+ 				if (!memcmp(opt, valid_accm,
+ 					    sizeof(valid_accm)))
+ 					continue;
+@@ -409,6 +408,8 @@ static void ppp_cp_parse_cr(struct net_device *dev, u16 pid, u8 id,
+ 				}
+ 				break;
+ 			case LCP_OPTION_MAGIC:
++				if (len < 6)
++					goto err_out;
+ 				if (opt[1] != 6 || (!opt[2] && !opt[3] &&
+ 						    !opt[4] && !opt[5]))
+ 					break; /* reject invalid magic number */
+@@ -427,6 +428,11 @@ static void ppp_cp_parse_cr(struct net_device *dev, u16 pid, u8 id,
+ 		ppp_cp_event(dev, pid, RCR_GOOD, CP_CONF_ACK, id, req_len, data);
+ 
+ 	kfree(out);
++	return;
++
++err_out:
++	dev->stats.rx_errors++;
++	kfree(out);
+ }
+ 
+ static int ppp_rx(struct sk_buff *skb)
+diff --git a/drivers/net/wireless/ath/ar5523/ar5523.c b/drivers/net/wireless/ath/ar5523/ar5523.c
+index e492c7f0d311a..9f4ee1d125b68 100644
+--- a/drivers/net/wireless/ath/ar5523/ar5523.c
++++ b/drivers/net/wireless/ath/ar5523/ar5523.c
+@@ -1769,6 +1769,8 @@ static struct usb_device_id ar5523_id_table[] = {
+ 	AR5523_DEVICE_UX(0x0846, 0x4300),	/* Netgear / WG111U */
+ 	AR5523_DEVICE_UG(0x0846, 0x4250),	/* Netgear / WG111T */
+ 	AR5523_DEVICE_UG(0x0846, 0x5f00),	/* Netgear / WPN111 */
++	AR5523_DEVICE_UG(0x083a, 0x4506),	/* SMC / EZ Connect
++						   SMCWUSBT-G2 */
+ 	AR5523_DEVICE_UG(0x157e, 0x3006),	/* Umedia / AR5523_1 */
+ 	AR5523_DEVICE_UX(0x157e, 0x3205),	/* Umedia / AR5523_2 */
+ 	AR5523_DEVICE_UG(0x157e, 0x3006),	/* Umedia / TEW444UBEU */
+diff --git a/drivers/net/wireless/marvell/mwifiex/fw.h b/drivers/net/wireless/marvell/mwifiex/fw.h
+index 395d6ece2cacb..341f6ed5b3556 100644
+--- a/drivers/net/wireless/marvell/mwifiex/fw.h
++++ b/drivers/net/wireless/marvell/mwifiex/fw.h
+@@ -921,7 +921,7 @@ struct mwifiex_tkip_param {
+ struct mwifiex_aes_param {
+ 	u8 pn[WPA_PN_SIZE];
+ 	__le16 key_len;
+-	u8 key[WLAN_KEY_LEN_CCMP];
++	u8 key[WLAN_KEY_LEN_CCMP_256];
+ } __packed;
+ 
+ struct mwifiex_wapi_param {
+diff --git a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
+index 1e26936c0d727..aa84fdb709830 100644
+--- a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
++++ b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
+@@ -625,7 +625,7 @@ static int mwifiex_ret_802_11_key_material_v2(struct mwifiex_private *priv,
+ 	key_v2 = &resp->params.key_material_v2;
+ 
+ 	len = le16_to_cpu(key_v2->key_param_set.key_params.aes.key_len);
+-	if (len > WLAN_KEY_LEN_CCMP)
++	if (len > sizeof(key_v2->key_param_set.key_params.aes.key))
+ 		return -EINVAL;
+ 
+ 	if (le16_to_cpu(key_v2->action) == HostCmd_ACT_GEN_SET) {
+@@ -641,7 +641,7 @@ static int mwifiex_ret_802_11_key_material_v2(struct mwifiex_private *priv,
+ 		return 0;
+ 
+ 	memset(priv->aes_key_v2.key_param_set.key_params.aes.key, 0,
+-	       WLAN_KEY_LEN_CCMP);
++	       sizeof(key_v2->key_param_set.key_params.aes.key));
+ 	priv->aes_key_v2.key_param_set.key_params.aes.key_len =
+ 				cpu_to_le16(len);
+ 	memcpy(priv->aes_key_v2.key_param_set.key_params.aes.key,
+diff --git a/drivers/phy/phy-s5pv210-usb2.c b/drivers/phy/phy-s5pv210-usb2.c
+index 004d320767e4d..bb36cfd4e3e90 100644
+--- a/drivers/phy/phy-s5pv210-usb2.c
++++ b/drivers/phy/phy-s5pv210-usb2.c
+@@ -142,6 +142,10 @@ static void s5pv210_phy_pwr(struct samsung_usb2_phy_instance *inst, bool on)
+ 		udelay(10);
+ 		rst &= ~rstbits;
+ 		writel(rst, drv->reg_phy + S5PV210_UPHYRST);
++		/* The following delay is necessary for the reset sequence to be
++		 * completed
++		 */
++		udelay(80);
+ 	} else {
+ 		pwr = readl(drv->reg_phy + S5PV210_UPHYPWR);
+ 		pwr |= phypwr;
+diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
+index 065f11a1964d4..39deea8601d68 100644
+--- a/drivers/scsi/aacraid/aachba.c
++++ b/drivers/scsi/aacraid/aachba.c
+@@ -1929,13 +1929,13 @@ static int aac_read(struct scsi_cmnd * scsicmd)
+ 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
+ 			SAM_STAT_CHECK_CONDITION;
+ 		set_sense(&dev->fsa_dev[cid].sense_data,
+-			  HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
++			  ILLEGAL_REQUEST, SENCODE_LBA_OUT_OF_RANGE,
+ 			  ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
+ 		memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
+ 		       min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
+ 			     SCSI_SENSE_BUFFERSIZE));
+ 		scsicmd->scsi_done(scsicmd);
+-		return 1;
++		return 0;
+ 	}
+ 
+ 	dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
+@@ -2023,13 +2023,13 @@ static int aac_write(struct scsi_cmnd * scsicmd)
+ 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
+ 			SAM_STAT_CHECK_CONDITION;
+ 		set_sense(&dev->fsa_dev[cid].sense_data,
+-			  HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
++			  ILLEGAL_REQUEST, SENCODE_LBA_OUT_OF_RANGE,
+ 			  ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
+ 		memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
+ 		       min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
+ 			     SCSI_SENSE_BUFFERSIZE));
+ 		scsicmd->scsi_done(scsicmd);
+-		return 1;
++		return 0;
+ 	}
+ 
+ 	dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
+diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
+index 52afbcff362f9..b7940fffca637 100644
+--- a/drivers/scsi/lpfc/lpfc_ct.c
++++ b/drivers/scsi/lpfc/lpfc_ct.c
+@@ -1541,8 +1541,8 @@ lpfc_fdmi_hba_attr_wwnn(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad)
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, sizeof(struct lpfc_name));
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	memcpy(&ae->un.AttrWWN, &vport->fc_sparam.nodeName,
+ 	       sizeof(struct lpfc_name));
+@@ -1558,8 +1558,8 @@ lpfc_fdmi_hba_attr_manufacturer(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	/* This string MUST be consistent with other FC platforms
+ 	 * supported by Broadcom.
+@@ -1583,8 +1583,8 @@ lpfc_fdmi_hba_attr_sn(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad)
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	strncpy(ae->un.AttrString, phba->SerialNumber,
+ 		sizeof(ae->un.AttrString));
+@@ -1605,8 +1605,8 @@ lpfc_fdmi_hba_attr_model(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	strncpy(ae->un.AttrString, phba->ModelName,
+ 		sizeof(ae->un.AttrString));
+@@ -1626,8 +1626,8 @@ lpfc_fdmi_hba_attr_description(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	strncpy(ae->un.AttrString, phba->ModelDesc,
+ 		sizeof(ae->un.AttrString));
+@@ -1649,8 +1649,8 @@ lpfc_fdmi_hba_attr_hdw_ver(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t i, j, incr, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	/* Convert JEDEC ID to ascii for hardware version */
+ 	incr = vp->rev.biuRev;
+@@ -1679,8 +1679,8 @@ lpfc_fdmi_hba_attr_drvr_ver(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	strncpy(ae->un.AttrString, lpfc_release_version,
+ 		sizeof(ae->un.AttrString));
+@@ -1701,8 +1701,8 @@ lpfc_fdmi_hba_attr_rom_ver(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	if (phba->sli_rev == LPFC_SLI_REV4)
+ 		lpfc_decode_firmware_rev(phba, ae->un.AttrString, 1);
+@@ -1726,8 +1726,8 @@ lpfc_fdmi_hba_attr_fmw_ver(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	lpfc_decode_firmware_rev(phba, ae->un.AttrString, 1);
+ 	len = strnlen(ae->un.AttrString,
+@@ -1746,8 +1746,8 @@ lpfc_fdmi_hba_attr_os_ver(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	snprintf(ae->un.AttrString, sizeof(ae->un.AttrString), "%s %s %s",
+ 		 init_utsname()->sysname,
+@@ -1769,7 +1769,7 @@ lpfc_fdmi_hba_attr_ct_len(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 
+ 	ae->un.AttrInt =  cpu_to_be32(LPFC_MAX_CT_SIZE);
+ 	size = FOURBYTES + sizeof(uint32_t);
+@@ -1785,8 +1785,8 @@ lpfc_fdmi_hba_attr_symbolic_name(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	len = lpfc_vport_symbolic_node_name(vport,
+ 				ae->un.AttrString, 256);
+@@ -1804,7 +1804,7 @@ lpfc_fdmi_hba_attr_vendor_info(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 
+ 	/* Nothing is defined for this currently */
+ 	ae->un.AttrInt =  cpu_to_be32(0);
+@@ -1821,7 +1821,7 @@ lpfc_fdmi_hba_attr_num_ports(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 
+ 	/* Each driver instance corresponds to a single port */
+ 	ae->un.AttrInt =  cpu_to_be32(1);
+@@ -1838,8 +1838,8 @@ lpfc_fdmi_hba_attr_fabric_wwnn(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, sizeof(struct lpfc_name));
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	memcpy(&ae->un.AttrWWN, &vport->fabric_nodename,
+ 	       sizeof(struct lpfc_name));
+@@ -1857,8 +1857,8 @@ lpfc_fdmi_hba_attr_bios_ver(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	lpfc_decode_firmware_rev(phba, ae->un.AttrString, 1);
+ 	len = strnlen(ae->un.AttrString,
+@@ -1877,7 +1877,7 @@ lpfc_fdmi_hba_attr_bios_state(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 
+ 	/* Driver doesn't have access to this information */
+ 	ae->un.AttrInt =  cpu_to_be32(0);
+@@ -1894,8 +1894,8 @@ lpfc_fdmi_hba_attr_vendor_id(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	strncpy(ae->un.AttrString, "EMULEX",
+ 		sizeof(ae->un.AttrString));
+@@ -1916,8 +1916,8 @@ lpfc_fdmi_port_attr_fc4type(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 32);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	ae->un.AttrTypes[3] = 0x02; /* Type 1 - ELS */
+ 	ae->un.AttrTypes[2] = 0x01; /* Type 8 - FCP */
+@@ -1936,7 +1936,7 @@ lpfc_fdmi_port_attr_support_speed(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 
+ 	ae->un.AttrInt = 0;
+ 	if (!(phba->hba_flag & HBA_FCOE_MODE)) {
+@@ -1986,7 +1986,7 @@ lpfc_fdmi_port_attr_speed(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 
+ 	if (!(phba->hba_flag & HBA_FCOE_MODE)) {
+ 		switch (phba->fc_linkspeed) {
+@@ -2050,7 +2050,7 @@ lpfc_fdmi_port_attr_max_frame(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 
+ 	hsp = (struct serv_parm *)&vport->fc_sparam;
+ 	ae->un.AttrInt = (((uint32_t) hsp->cmn.bbRcvSizeMsb) << 8) |
+@@ -2070,8 +2070,8 @@ lpfc_fdmi_port_attr_os_devname(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	snprintf(ae->un.AttrString, sizeof(ae->un.AttrString),
+ 		 "/sys/class/scsi_host/host%d", shost->host_no);
+@@ -2091,8 +2091,8 @@ lpfc_fdmi_port_attr_host_name(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	snprintf(ae->un.AttrString, sizeof(ae->un.AttrString), "%s",
+ 		 init_utsname()->nodename);
+@@ -2112,8 +2112,8 @@ lpfc_fdmi_port_attr_wwnn(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0,  sizeof(struct lpfc_name));
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	memcpy(&ae->un.AttrWWN, &vport->fc_sparam.nodeName,
+ 	       sizeof(struct lpfc_name));
+@@ -2130,8 +2130,8 @@ lpfc_fdmi_port_attr_wwpn(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0,  sizeof(struct lpfc_name));
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	memcpy(&ae->un.AttrWWN, &vport->fc_sparam.portName,
+ 	       sizeof(struct lpfc_name));
+@@ -2148,8 +2148,8 @@ lpfc_fdmi_port_attr_symbolic_name(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	len = lpfc_vport_symbolic_port_name(vport, ae->un.AttrString, 256);
+ 	len += (len & 3) ? (4 - (len & 3)) : 4;
+@@ -2167,7 +2167,7 @@ lpfc_fdmi_port_attr_port_type(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 	if (phba->fc_topology == LPFC_TOPOLOGY_LOOP)
+ 		ae->un.AttrInt =  cpu_to_be32(LPFC_FDMI_PORTTYPE_NLPORT);
+ 	else
+@@ -2185,7 +2185,7 @@ lpfc_fdmi_port_attr_class(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 	ae->un.AttrInt = cpu_to_be32(FC_COS_CLASS2 | FC_COS_CLASS3);
+ 	size = FOURBYTES + sizeof(uint32_t);
+ 	ad->AttrLen = cpu_to_be16(size);
+@@ -2200,8 +2200,8 @@ lpfc_fdmi_port_attr_fabric_wwpn(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0,  sizeof(struct lpfc_name));
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	memcpy(&ae->un.AttrWWN, &vport->fabric_portname,
+ 	       sizeof(struct lpfc_name));
+@@ -2218,8 +2218,8 @@ lpfc_fdmi_port_attr_active_fc4type(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 32);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	ae->un.AttrTypes[3] = 0x02; /* Type 1 - ELS */
+ 	ae->un.AttrTypes[2] = 0x01; /* Type 8 - FCP */
+@@ -2237,7 +2237,7 @@ lpfc_fdmi_port_attr_port_state(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 	/* Link Up - operational */
+ 	ae->un.AttrInt =  cpu_to_be32(LPFC_FDMI_PORTSTATE_ONLINE);
+ 	size = FOURBYTES + sizeof(uint32_t);
+@@ -2253,7 +2253,7 @@ lpfc_fdmi_port_attr_num_disc(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 	vport->fdmi_num_disc = lpfc_find_map_node(vport);
+ 	ae->un.AttrInt = cpu_to_be32(vport->fdmi_num_disc);
+ 	size = FOURBYTES + sizeof(uint32_t);
+@@ -2269,7 +2269,7 @@ lpfc_fdmi_port_attr_nportid(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 	ae->un.AttrInt =  cpu_to_be32(vport->fc_myDID);
+ 	size = FOURBYTES + sizeof(uint32_t);
+ 	ad->AttrLen = cpu_to_be16(size);
+@@ -2284,8 +2284,8 @@ lpfc_fdmi_smart_attr_service(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	strncpy(ae->un.AttrString, "Smart SAN Initiator",
+ 		sizeof(ae->un.AttrString));
+@@ -2305,8 +2305,8 @@ lpfc_fdmi_smart_attr_guid(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	memcpy(&ae->un.AttrString, &vport->fc_sparam.nodeName,
+ 	       sizeof(struct lpfc_name));
+@@ -2326,8 +2326,8 @@ lpfc_fdmi_smart_attr_version(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	strncpy(ae->un.AttrString, "Smart SAN Version 2.0",
+ 		sizeof(ae->un.AttrString));
+@@ -2348,8 +2348,8 @@ lpfc_fdmi_smart_attr_model(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t len, size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+-	memset(ae, 0, 256);
++	ae = &ad->AttrValue;
++	memset(ae, 0, sizeof(*ae));
+ 
+ 	strncpy(ae->un.AttrString, phba->ModelName,
+ 		sizeof(ae->un.AttrString));
+@@ -2368,7 +2368,7 @@ lpfc_fdmi_smart_attr_port_info(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 
+ 	/* SRIOV (type 3) is not supported */
+ 	if (vport->vpi)
+@@ -2388,7 +2388,7 @@ lpfc_fdmi_smart_attr_qos(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 	ae->un.AttrInt =  cpu_to_be32(0);
+ 	size = FOURBYTES + sizeof(uint32_t);
+ 	ad->AttrLen = cpu_to_be16(size);
+@@ -2403,7 +2403,7 @@ lpfc_fdmi_smart_attr_security(struct lpfc_vport *vport,
+ 	struct lpfc_fdmi_attr_entry *ae;
+ 	uint32_t size;
+ 
+-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
++	ae = &ad->AttrValue;
+ 	ae->un.AttrInt =  cpu_to_be32(1);
+ 	size = FOURBYTES + sizeof(uint32_t);
+ 	ad->AttrLen = cpu_to_be16(size);
+@@ -2551,7 +2551,8 @@ lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+ 			/* Registered Port List */
+ 			/* One entry (port) per adapter */
+ 			rh->rpl.EntryCnt = cpu_to_be32(1);
+-			memcpy(&rh->rpl.pe, &phba->pport->fc_sparam.portName,
++			memcpy(&rh->rpl.pe.PortName,
++			       &phba->pport->fc_sparam.portName,
+ 			       sizeof(struct lpfc_name));
+ 
+ 			/* point to the HBA attribute block */
+diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
+index 3b970d3706008..daab21f940fb8 100644
+--- a/drivers/scsi/lpfc/lpfc_hw.h
++++ b/drivers/scsi/lpfc/lpfc_hw.h
+@@ -1289,25 +1289,8 @@ struct fc_rdp_res_frame {
+ /* lpfc_sli_ct_request defines the CT_IU preamble for FDMI commands */
+ #define  SLI_CT_FDMI_Subtypes     0x10	/* Management Service Subtype */
+ 
+-/*
+- * Registered Port List Format
+- */
+-struct lpfc_fdmi_reg_port_list {
+-	uint32_t EntryCnt;
+-	uint32_t pe;		/* Variable-length array */
+-};
+-
+-
+ /* Definitions for HBA / Port attribute entries */
+ 
+-struct lpfc_fdmi_attr_def { /* Defined in TLV format */
+-	/* Structure is in Big Endian format */
+-	uint32_t AttrType:16;
+-	uint32_t AttrLen:16;
+-	uint32_t AttrValue;  /* Marks start of Value (ATTRIBUTE_ENTRY) */
+-};
+-
+-
+ /* Attribute Entry */
+ struct lpfc_fdmi_attr_entry {
+ 	union {
+@@ -1318,7 +1301,13 @@ struct lpfc_fdmi_attr_entry {
+ 	} un;
+ };
+ 
+-#define LPFC_FDMI_MAX_AE_SIZE	sizeof(struct lpfc_fdmi_attr_entry)
++struct lpfc_fdmi_attr_def { /* Defined in TLV format */
++	/* Structure is in Big Endian format */
++	uint32_t AttrType:16;
++	uint32_t AttrLen:16;
++	/* Marks start of Value (ATTRIBUTE_ENTRY) */
++	struct lpfc_fdmi_attr_entry AttrValue;
++} __packed;
+ 
+ /*
+  * HBA Attribute Block
+@@ -1342,13 +1331,20 @@ struct lpfc_fdmi_hba_ident {
+ 	struct lpfc_name PortName;
+ };
+ 
++/*
++ * Registered Port List Format
++ */
++struct lpfc_fdmi_reg_port_list {
++	uint32_t EntryCnt;
++	struct lpfc_fdmi_port_entry pe;
++} __packed;
++
+ /*
+  * Register HBA(RHBA)
+  */
+ struct lpfc_fdmi_reg_hba {
+ 	struct lpfc_fdmi_hba_ident hi;
+-	struct lpfc_fdmi_reg_port_list rpl;	/* variable-length array */
+-/* struct lpfc_fdmi_attr_block   ab; */
++	struct lpfc_fdmi_reg_port_list rpl;
+ };
+ 
+ /*
+diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
+index 1c34dc3355498..08c76c361e8dc 100644
+--- a/drivers/scsi/lpfc/lpfc_sli.c
++++ b/drivers/scsi/lpfc/lpfc_sli.c
+@@ -15648,6 +15648,10 @@ lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
+ 			list_add_tail(&iocbq->list, &first_iocbq->list);
+ 		}
+ 	}
++	/* Free the sequence's header buffer */
++	if (!first_iocbq)
++		lpfc_in_buf_free(vport->phba, &seq_dmabuf->dbuf);
++
+ 	return first_iocbq;
+ }
+ 
+diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
+index 6624cc07ac044..8dbfd4ffd6355 100644
+--- a/drivers/tty/serial/8250/8250_core.c
++++ b/drivers/tty/serial/8250/8250_core.c
+@@ -1046,8 +1046,10 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
+ 
+ 			ret = uart_add_one_port(&serial8250_reg,
+ 						&uart->port);
+-			if (ret == 0)
+-				ret = uart->port.line;
++			if (ret)
++				goto err;
++
++			ret = uart->port.line;
+ 		} else {
+ 			dev_info(uart->port.dev,
+ 				"skipping CIR port at 0x%lx / 0x%llx, IRQ %d\n",
+@@ -1061,6 +1063,11 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
+ 	mutex_unlock(&serial_mutex);
+ 
+ 	return ret;
++
++err:
++	uart->port.dev = NULL;
++	mutex_unlock(&serial_mutex);
++	return ret;
+ }
+ EXPORT_SYMBOL(serial8250_register_8250_port);
+ 
+diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
+index a3adf21f9dcec..d41be02abced2 100644
+--- a/drivers/tty/serial/8250/8250_omap.c
++++ b/drivers/tty/serial/8250/8250_omap.c
+@@ -773,7 +773,10 @@ static void __dma_rx_do_complete(struct uart_8250_port *p)
+ 	dmaengine_tx_status(dma->rxchan, dma->rx_cookie, &state);
+ 
+ 	count = dma->rx_size - state.residue;
+-
++	if (count < dma->rx_size)
++		dmaengine_terminate_async(dma->rxchan);
++	if (!count)
++		goto unlock;
+ 	ret = tty_insert_flip_string(tty_port, dma->rx_buf, count);
+ 
+ 	p->port.icount.rx += ret;
+@@ -811,7 +814,6 @@ static void omap_8250_rx_dma_flush(struct uart_8250_port *p)
+ 	spin_unlock_irqrestore(&priv->rx_dma_lock, flags);
+ 
+ 	__dma_rx_do_complete(p);
+-	dmaengine_terminate_all(dma->rxchan);
+ }
+ 
+ static int omap_8250_rx_dma(struct uart_8250_port *p)
+@@ -1194,11 +1196,11 @@ static int omap8250_probe(struct platform_device *pdev)
+ 	spin_lock_init(&priv->rx_dma_lock);
+ 
+ 	device_init_wakeup(&pdev->dev, true);
++	pm_runtime_enable(&pdev->dev);
+ 	pm_runtime_use_autosuspend(&pdev->dev);
+ 	pm_runtime_set_autosuspend_delay(&pdev->dev, -1);
+ 
+ 	pm_runtime_irq_safe(&pdev->dev);
+-	pm_runtime_enable(&pdev->dev);
+ 
+ 	pm_runtime_get_sync(&pdev->dev);
+ 
+diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
+index 5641b877dca53..827a641ac336e 100644
+--- a/drivers/tty/serial/8250/8250_port.c
++++ b/drivers/tty/serial/8250/8250_port.c
+@@ -1806,6 +1806,7 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir)
+ 	unsigned char status;
+ 	unsigned long flags;
+ 	struct uart_8250_port *up = up_to_u8250p(port);
++	bool skip_rx = false;
+ 
+ 	if (iir & UART_IIR_NO_INT)
+ 		return 0;
+@@ -1814,7 +1815,20 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir)
+ 
+ 	status = serial_port_in(port, UART_LSR);
+ 
+-	if (status & (UART_LSR_DR | UART_LSR_BI)) {
++	/*
++	 * If port is stopped and there are no error conditions in the
++	 * FIFO, then don't drain the FIFO, as this may lead to TTY buffer
++	 * overflow. Not servicing, RX FIFO would trigger auto HW flow
++	 * control when FIFO occupancy reaches preset threshold, thus
++	 * halting RX. This only works when auto HW flow control is
++	 * available.
++	 */
++	if (!(status & (UART_LSR_FIFOE | UART_LSR_BRK_ERROR_BITS)) &&
++	    (port->status & (UPSTAT_AUTOCTS | UPSTAT_AUTORTS)) &&
++	    !(port->read_status_mask & UART_LSR_DR))
++		skip_rx = true;
++
++	if (status & (UART_LSR_DR | UART_LSR_BI) && !skip_rx) {
+ 		if (!up->dma || handle_rx_dma(up, iir))
+ 			status = serial8250_rx_chars(up, status);
+ 	}
+diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
+index 4dfdb59061bea..8c89697c53573 100644
+--- a/drivers/tty/serial/samsung.c
++++ b/drivers/tty/serial/samsung.c
+@@ -1157,14 +1157,14 @@ static unsigned int s3c24xx_serial_getclk(struct s3c24xx_uart_port *ourport,
+ 	struct s3c24xx_uart_info *info = ourport->info;
+ 	struct clk *clk;
+ 	unsigned long rate;
+-	unsigned int cnt, baud, quot, clk_sel, best_quot = 0;
++	unsigned int cnt, baud, quot, best_quot = 0;
+ 	char clkname[MAX_CLK_NAME_LENGTH];
+ 	int calc_deviation, deviation = (1 << 30) - 1;
+ 
+-	clk_sel = (ourport->cfg->clk_sel) ? ourport->cfg->clk_sel :
+-			ourport->info->def_clk_sel;
+ 	for (cnt = 0; cnt < info->num_clks; cnt++) {
+-		if (!(clk_sel & (1 << cnt)))
++		/* Keep selected clock if provided */
++		if (ourport->cfg->clk_sel &&
++			!(ourport->cfg->clk_sel & (1 << cnt)))
+ 			continue;
+ 
+ 		sprintf(clkname, "clk_uart_baud%d", cnt);
+diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c
+index 849806a75f1ce..b29610899c9f6 100644
+--- a/drivers/usb/host/ehci-mv.c
++++ b/drivers/usb/host/ehci-mv.c
+@@ -196,12 +196,10 @@ static int mv_ehci_probe(struct platform_device *pdev)
+ 	hcd->rsrc_len = resource_size(r);
+ 	hcd->regs = ehci_mv->op_regs;
+ 
+-	hcd->irq = platform_get_irq(pdev, 0);
+-	if (!hcd->irq) {
+-		dev_err(&pdev->dev, "Cannot get irq.");
+-		retval = -ENODEV;
++	retval = platform_get_irq(pdev, 0);
++	if (retval < 0)
+ 		goto err_disable_clk;
+-	}
++	hcd->irq = retval;
+ 
+ 	ehci = hcd_to_ehci(hcd);
+ 	ehci->caps = (struct ehci_caps *) ehci_mv->cap_regs;
+diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
+index 2254c281cc766..237d5aceb302d 100644
+--- a/drivers/vfio/pci/vfio_pci.c
++++ b/drivers/vfio/pci/vfio_pci.c
+@@ -392,6 +392,19 @@ static void vfio_pci_release(void *device_data)
+ 	if (!(--vdev->refcnt)) {
+ 		vfio_spapr_pci_eeh_release(vdev->pdev);
+ 		vfio_pci_disable(vdev);
++		mutex_lock(&vdev->igate);
++		if (vdev->err_trigger) {
++			eventfd_ctx_put(vdev->err_trigger);
++			vdev->err_trigger = NULL;
++		}
++		mutex_unlock(&vdev->igate);
++
++		mutex_lock(&vdev->igate);
++		if (vdev->req_trigger) {
++			eventfd_ctx_put(vdev->req_trigger);
++			vdev->req_trigger = NULL;
++		}
++		mutex_unlock(&vdev->igate);
+ 	}
+ 
+ 	mutex_unlock(&driver_lock);
+diff --git a/fs/block_dev.c b/fs/block_dev.c
+index 06f7cbe201326..98b37e77683d3 100644
+--- a/fs/block_dev.c
++++ b/fs/block_dev.c
+@@ -1586,6 +1586,16 @@ static void __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part)
+ 	struct gendisk *disk = bdev->bd_disk;
+ 	struct block_device *victim = NULL;
+ 
++	/*
++	 * Sync early if it looks like we're the last one.  If someone else
++	 * opens the block device between now and the decrement of bd_openers
++	 * then we did a sync that we didn't need to, but that's not the end
++	 * of the world and we want to avoid long (could be several minute)
++	 * syncs while holding the mutex.
++	 */
++	if (bdev->bd_openers == 1)
++		sync_blockdev(bdev);
++
+ 	mutex_lock_nested(&bdev->bd_mutex, for_part);
+ 	if (for_part)
+ 		bdev->bd_part_count--;
+diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
+index c0033a0d00787..b5bff1e760a34 100644
+--- a/fs/btrfs/extent-tree.c
++++ b/fs/btrfs/extent-tree.c
+@@ -9435,8 +9435,6 @@ out:
+ 	 */
+ 	if (!for_reloc && root_dropped == false)
+ 		btrfs_add_dead_root(root);
+-	if (err && err != -EAGAIN)
+-		btrfs_handle_fs_error(fs_info, err, NULL);
+ 	return err;
+ }
+ 
+diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
+index e11aacb35d6b5..cbd92dd89de16 100644
+--- a/fs/ceph/caps.c
++++ b/fs/ceph/caps.c
+@@ -1807,12 +1807,24 @@ ack:
+ 			if (mutex_trylock(&session->s_mutex) == 0) {
+ 				dout("inverting session/ino locks on %p\n",
+ 				     session);
++				session = ceph_get_mds_session(session);
+ 				spin_unlock(&ci->i_ceph_lock);
+ 				if (took_snap_rwsem) {
+ 					up_read(&mdsc->snap_rwsem);
+ 					took_snap_rwsem = 0;
+ 				}
+-				mutex_lock(&session->s_mutex);
++				if (session) {
++					mutex_lock(&session->s_mutex);
++					ceph_put_mds_session(session);
++				} else {
++					/*
++					 * Because we take the reference while
++					 * holding the i_ceph_lock, it should
++					 * never be NULL. Throw a warning if it
++					 * ever is.
++					 */
++					WARN_ON_ONCE(true);
++				}
+ 				goto retry;
+ 			}
+ 		}
+diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
+index 7ae21ad420fbf..a12258c32e8a3 100644
+--- a/fs/cifs/cifsglob.h
++++ b/fs/cifs/cifsglob.h
+@@ -242,8 +242,9 @@ struct smb_version_operations {
+ 	int (*check_message)(char *, unsigned int, struct TCP_Server_Info *);
+ 	bool (*is_oplock_break)(char *, struct TCP_Server_Info *);
+ 	int (*handle_cancelled_mid)(char *, struct TCP_Server_Info *);
+-	void (*downgrade_oplock)(struct TCP_Server_Info *,
+-					struct cifsInodeInfo *, bool);
++	void (*downgrade_oplock)(struct TCP_Server_Info *server,
++				 struct cifsInodeInfo *cinode, __u32 oplock,
++				 unsigned int epoch, bool *purge_cache);
+ 	/* process transaction2 response */
+ 	bool (*check_trans2)(struct mid_q_entry *, struct TCP_Server_Info *,
+ 			     char *, int);
+@@ -1080,6 +1081,8 @@ struct cifsFileInfo {
+ 	unsigned int f_flags;
+ 	bool invalidHandle:1;	/* file closed via session abend */
+ 	bool oplock_break_cancelled:1;
++	unsigned int oplock_epoch; /* epoch from the lease break */
++	__u32 oplock_level; /* oplock/lease level from the lease break */
+ 	int count;
+ 	spinlock_t file_info_lock; /* protects four flag/count fields above */
+ 	struct mutex fh_mutex; /* prevents reopen race after dead ses*/
+@@ -1191,7 +1194,7 @@ struct cifsInodeInfo {
+ 	unsigned int epoch;		/* used to track lease state changes */
+ #define CIFS_INODE_PENDING_OPLOCK_BREAK   (0) /* oplock break in progress */
+ #define CIFS_INODE_PENDING_WRITERS	  (1) /* Writes in progress */
+-#define CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2 (2) /* Downgrade oplock to L2 */
++#define CIFS_INODE_FLAG_UNUSED		  (2) /* Unused flag */
+ #define CIFS_INO_DELETE_PENDING		  (3) /* delete pending on server */
+ #define CIFS_INO_INVALID_MAPPING	  (4) /* pagecache is invalid */
+ #define CIFS_INO_LOCK			  (5) /* lock bit for synchronization */
+diff --git a/fs/cifs/file.c b/fs/cifs/file.c
+index b2919166855f5..24508b69e78b7 100644
+--- a/fs/cifs/file.c
++++ b/fs/cifs/file.c
+@@ -3531,7 +3531,8 @@ readpages_get_pages(struct address_space *mapping, struct list_head *page_list,
+ 			break;
+ 
+ 		__SetPageLocked(page);
+-		if (add_to_page_cache_locked(page, mapping, page->index, gfp)) {
++		rc = add_to_page_cache_locked(page, mapping, page->index, gfp);
++		if (rc) {
+ 			__ClearPageLocked(page);
+ 			break;
+ 		}
+@@ -3547,6 +3548,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
+ 	struct list_head *page_list, unsigned num_pages)
+ {
+ 	int rc;
++	int err = 0;
+ 	struct list_head tmplist;
+ 	struct cifsFileInfo *open_file = file->private_data;
+ 	struct cifs_sb_info *cifs_sb = CIFS_FILE_SB(file);
+@@ -3587,7 +3589,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
+ 	 * the order of declining indexes. When we put the pages in
+ 	 * the rdata->pages, then we want them in increasing order.
+ 	 */
+-	while (!list_empty(page_list)) {
++	while (!list_empty(page_list) && !err) {
+ 		unsigned int i, nr_pages, bytes, rsize;
+ 		loff_t offset;
+ 		struct page *page, *tpage;
+@@ -3610,9 +3612,10 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
+ 			return 0;
+ 		}
+ 
+-		rc = readpages_get_pages(mapping, page_list, rsize, &tmplist,
++		nr_pages = 0;
++		err = readpages_get_pages(mapping, page_list, rsize, &tmplist,
+ 					 &nr_pages, &offset, &bytes);
+-		if (rc) {
++		if (!nr_pages) {
+ 			add_credits_and_wake_if(server, credits, 0);
+ 			break;
+ 		}
+@@ -3912,12 +3915,13 @@ void cifs_oplock_break(struct work_struct *work)
+ 	struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
+ 	struct TCP_Server_Info *server = tcon->ses->server;
+ 	int rc = 0;
++	bool purge_cache = false;
+ 
+ 	wait_on_bit(&cinode->flags, CIFS_INODE_PENDING_WRITERS,
+ 			TASK_UNINTERRUPTIBLE);
+ 
+-	server->ops->downgrade_oplock(server, cinode,
+-		test_bit(CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2, &cinode->flags));
++	server->ops->downgrade_oplock(server, cinode, cfile->oplock_level,
++				      cfile->oplock_epoch, &purge_cache);
+ 
+ 	if (!CIFS_CACHE_WRITE(cinode) && CIFS_CACHE_READ(cinode) &&
+ 						cifs_has_mand_locks(cinode)) {
+@@ -3932,18 +3936,21 @@ void cifs_oplock_break(struct work_struct *work)
+ 		else
+ 			break_lease(inode, O_WRONLY);
+ 		rc = filemap_fdatawrite(inode->i_mapping);
+-		if (!CIFS_CACHE_READ(cinode)) {
++		if (!CIFS_CACHE_READ(cinode) || purge_cache) {
+ 			rc = filemap_fdatawait(inode->i_mapping);
+ 			mapping_set_error(inode->i_mapping, rc);
+ 			cifs_zap_mapping(inode);
+ 		}
+ 		cifs_dbg(FYI, "Oplock flush inode %p rc %d\n", inode, rc);
++		if (CIFS_CACHE_WRITE(cinode))
++			goto oplock_break_ack;
+ 	}
+ 
+ 	rc = cifs_push_locks(cfile);
+ 	if (rc)
+ 		cifs_dbg(VFS, "Push locks rc = %d\n", rc);
+ 
++oplock_break_ack:
+ 	/*
+ 	 * releasing stale oplock after recent reconnect of smb session using
+ 	 * a now incorrect file handle is not a data integrity issue but do
+diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
+index 5e75df69062d8..bdf151e949166 100644
+--- a/fs/cifs/misc.c
++++ b/fs/cifs/misc.c
+@@ -481,21 +481,10 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv)
+ 				set_bit(CIFS_INODE_PENDING_OPLOCK_BREAK,
+ 					&pCifsInode->flags);
+ 
+-				/*
+-				 * Set flag if the server downgrades the oplock
+-				 * to L2 else clear.
+-				 */
+-				if (pSMB->OplockLevel)
+-					set_bit(
+-					   CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
+-					   &pCifsInode->flags);
+-				else
+-					clear_bit(
+-					   CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
+-					   &pCifsInode->flags);
+-
+-				cifs_queue_oplock_break(netfile);
++				netfile->oplock_epoch = 0;
++				netfile->oplock_level = pSMB->OplockLevel;
+ 				netfile->oplock_break_cancelled = false;
++				cifs_queue_oplock_break(netfile);
+ 
+ 				spin_unlock(&tcon->open_file_lock);
+ 				spin_unlock(&cifs_tcp_ses_lock);
+diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
+index 6f5d78b172bac..9a1f01c2f0209 100644
+--- a/fs/cifs/smb1ops.c
++++ b/fs/cifs/smb1ops.c
+@@ -378,12 +378,10 @@ coalesce_t2(char *second_buf, struct smb_hdr *target_hdr)
+ 
+ static void
+ cifs_downgrade_oplock(struct TCP_Server_Info *server,
+-			struct cifsInodeInfo *cinode, bool set_level2)
++		      struct cifsInodeInfo *cinode, __u32 oplock,
++		      unsigned int epoch, bool *purge_cache)
+ {
+-	if (set_level2)
+-		cifs_set_oplock_level(cinode, OPLOCK_READ);
+-	else
+-		cifs_set_oplock_level(cinode, 0);
++	cifs_set_oplock_level(cinode, oplock);
+ }
+ 
+ static bool
+diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
+index 7b7b47e26dbd4..bddb2d7b39824 100644
+--- a/fs/cifs/smb2misc.c
++++ b/fs/cifs/smb2misc.c
+@@ -491,7 +491,7 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp,
+ 
+ 		cifs_dbg(FYI, "found in the open list\n");
+ 		cifs_dbg(FYI, "lease key match, lease break 0x%x\n",
+-			 le32_to_cpu(rsp->NewLeaseState));
++			 lease_state);
+ 
+ 		if (ack_req)
+ 			cfile->oplock_break_cancelled = false;
+@@ -500,17 +500,8 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp,
+ 
+ 		set_bit(CIFS_INODE_PENDING_OPLOCK_BREAK, &cinode->flags);
+ 
+-		/*
+-		 * Set or clear flags depending on the lease state being READ.
+-		 * HANDLE caching flag should be added when the client starts
+-		 * to defer closing remote file handles with HANDLE leases.
+-		 */
+-		if (lease_state & SMB2_LEASE_READ_CACHING_HE)
+-			set_bit(CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
+-				&cinode->flags);
+-		else
+-			clear_bit(CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
+-				  &cinode->flags);
++		cfile->oplock_epoch = le16_to_cpu(rsp->Epoch);
++		cfile->oplock_level = lease_state;
+ 
+ 		cifs_queue_oplock_break(cfile);
+ 		kfree(lw);
+@@ -533,7 +524,7 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp,
+ 
+ 		cifs_dbg(FYI, "found in the pending open list\n");
+ 		cifs_dbg(FYI, "lease key match, lease break 0x%x\n",
+-			 le32_to_cpu(rsp->NewLeaseState));
++			 lease_state);
+ 
+ 		open->oplock = lease_state;
+ 	}
+@@ -645,18 +636,9 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
+ 				set_bit(CIFS_INODE_PENDING_OPLOCK_BREAK,
+ 					&cinode->flags);
+ 
+-				/*
+-				 * Set flag if the server downgrades the oplock
+-				 * to L2 else clear.
+-				 */
+-				if (rsp->OplockLevel)
+-					set_bit(
+-					   CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
+-					   &cinode->flags);
+-				else
+-					clear_bit(
+-					   CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
+-					   &cinode->flags);
++				cfile->oplock_epoch = 0;
++				cfile->oplock_level = rsp->OplockLevel;
++
+ 				spin_unlock(&cfile->file_info_lock);
+ 
+ 				cifs_queue_oplock_break(cfile);
+diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
+index edd4c7292be00..67edd6e03f803 100644
+--- a/fs/cifs/smb2ops.c
++++ b/fs/cifs/smb2ops.c
+@@ -1379,22 +1379,38 @@ static long smb3_fallocate(struct file *file, struct cifs_tcon *tcon, int mode,
+ 
+ static void
+ smb2_downgrade_oplock(struct TCP_Server_Info *server,
+-			struct cifsInodeInfo *cinode, bool set_level2)
++		      struct cifsInodeInfo *cinode, __u32 oplock,
++		      unsigned int epoch, bool *purge_cache)
+ {
+-	if (set_level2)
+-		server->ops->set_oplock_level(cinode, SMB2_OPLOCK_LEVEL_II,
+-						0, NULL);
+-	else
+-		server->ops->set_oplock_level(cinode, 0, 0, NULL);
++	server->ops->set_oplock_level(cinode, oplock, 0, NULL);
+ }
+ 
+ static void
+-smb21_downgrade_oplock(struct TCP_Server_Info *server,
+-		       struct cifsInodeInfo *cinode, bool set_level2)
++smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
++		       unsigned int epoch, bool *purge_cache);
++
++static void
++smb3_downgrade_oplock(struct TCP_Server_Info *server,
++		       struct cifsInodeInfo *cinode, __u32 oplock,
++		       unsigned int epoch, bool *purge_cache)
+ {
+-	server->ops->set_oplock_level(cinode,
+-				      set_level2 ? SMB2_LEASE_READ_CACHING_HE :
+-				      0, 0, NULL);
++	unsigned int old_state = cinode->oplock;
++	unsigned int old_epoch = cinode->epoch;
++	unsigned int new_state;
++
++	if (epoch > old_epoch) {
++		smb21_set_oplock_level(cinode, oplock, 0, NULL);
++		cinode->epoch = epoch;
++	}
++
++	new_state = cinode->oplock;
++	*purge_cache = false;
++
++	if ((old_state & CIFS_CACHE_READ_FLG) != 0 &&
++	    (new_state & CIFS_CACHE_READ_FLG) == 0)
++		*purge_cache = true;
++	else if (old_state == new_state && (epoch - old_epoch > 1))
++		*purge_cache = true;
+ }
+ 
+ static void
+@@ -1709,7 +1725,7 @@ struct smb_version_operations smb21_operations = {
+ 	.print_stats = smb2_print_stats,
+ 	.is_oplock_break = smb2_is_valid_oplock_break,
+ 	.handle_cancelled_mid = smb2_handle_cancelled_mid,
+-	.downgrade_oplock = smb21_downgrade_oplock,
++	.downgrade_oplock = smb2_downgrade_oplock,
+ 	.need_neg = smb2_need_neg,
+ 	.negotiate = smb2_negotiate,
+ 	.negotiate_wsize = smb2_negotiate_wsize,
+@@ -1793,7 +1809,7 @@ struct smb_version_operations smb30_operations = {
+ 	.dump_share_caps = smb2_dump_share_caps,
+ 	.is_oplock_break = smb2_is_valid_oplock_break,
+ 	.handle_cancelled_mid = smb2_handle_cancelled_mid,
+-	.downgrade_oplock = smb21_downgrade_oplock,
++	.downgrade_oplock = smb3_downgrade_oplock,
+ 	.need_neg = smb2_need_neg,
+ 	.negotiate = smb2_negotiate,
+ 	.negotiate_wsize = smb2_negotiate_wsize,
+@@ -1883,7 +1899,7 @@ struct smb_version_operations smb311_operations = {
+ 	.dump_share_caps = smb2_dump_share_caps,
+ 	.is_oplock_break = smb2_is_valid_oplock_break,
+ 	.handle_cancelled_mid = smb2_handle_cancelled_mid,
+-	.downgrade_oplock = smb21_downgrade_oplock,
++	.downgrade_oplock = smb3_downgrade_oplock,
+ 	.need_neg = smb2_need_neg,
+ 	.negotiate = smb2_negotiate,
+ 	.negotiate_wsize = smb2_negotiate_wsize,
+diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
+index 1af7afae3ad18..1a0c480745738 100644
+--- a/fs/cifs/smb2pdu.h
++++ b/fs/cifs/smb2pdu.h
+@@ -1025,7 +1025,7 @@ struct smb2_oplock_break {
+ struct smb2_lease_break {
+ 	struct smb2_hdr hdr;
+ 	__le16 StructureSize; /* Must be 44 */
+-	__le16 Reserved;
++	__le16 Epoch;
+ 	__le32 Flags;
+ 	__u8   LeaseKey[16];
+ 	__le32 CurrentLeaseState;
+diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
+index b99225e117120..f0129c033bd66 100644
+--- a/fs/fuse/dev.c
++++ b/fs/fuse/dev.c
+@@ -825,7 +825,6 @@ static int fuse_check_page(struct page *page)
+ {
+ 	if (page_mapcount(page) ||
+ 	    page->mapping != NULL ||
+-	    page_count(page) != 1 ||
+ 	    (page->flags & PAGE_FLAGS_CHECK_AT_PREP &
+ 	     ~(1 << PG_locked |
+ 	       1 << PG_referenced |
+diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
+index 97be412153328..9213a9e046ae0 100644
+--- a/fs/ubifs/io.c
++++ b/fs/ubifs/io.c
+@@ -237,7 +237,7 @@ int ubifs_is_mapped(const struct ubifs_info *c, int lnum)
+ int ubifs_check_node(const struct ubifs_info *c, const void *buf, int lnum,
+ 		     int offs, int quiet, int must_chk_crc)
+ {
+-	int err = -EINVAL, type, node_len;
++	int err = -EINVAL, type, node_len, dump_node = 1;
+ 	uint32_t crc, node_crc, magic;
+ 	const struct ubifs_ch *ch = buf;
+ 
+@@ -290,10 +290,22 @@ int ubifs_check_node(const struct ubifs_info *c, const void *buf, int lnum,
+ out_len:
+ 	if (!quiet)
+ 		ubifs_err(c, "bad node length %d", node_len);
++	if (type == UBIFS_DATA_NODE && node_len > UBIFS_DATA_NODE_SZ)
++		dump_node = 0;
+ out:
+ 	if (!quiet) {
+ 		ubifs_err(c, "bad node at LEB %d:%d", lnum, offs);
+-		ubifs_dump_node(c, buf);
++		if (dump_node) {
++			ubifs_dump_node(c, buf);
++		} else {
++			int safe_len = min3(node_len, c->leb_size - offs,
++				(int)UBIFS_MAX_DATA_NODE_SZ);
++			pr_err("\tprevent out-of-bounds memory access\n");
++			pr_err("\ttruncated data node length      %d\n", safe_len);
++			pr_err("\tcorrupted data node:\n");
++			print_hex_dump(KERN_ERR, "\t", DUMP_PREFIX_OFFSET, 32, 1,
++					buf, safe_len, 0);
++		}
+ 		dump_stack();
+ 	}
+ 	return err;
+diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
+index 7b9dd76403bfd..537acde2c497b 100644
+--- a/fs/xfs/libxfs/xfs_attr_leaf.c
++++ b/fs/xfs/libxfs/xfs_attr_leaf.c
+@@ -1332,7 +1332,9 @@ xfs_attr3_leaf_add_work(
+ 	for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; i++) {
+ 		if (ichdr->freemap[i].base == tmp) {
+ 			ichdr->freemap[i].base += sizeof(xfs_attr_leaf_entry_t);
+-			ichdr->freemap[i].size -= sizeof(xfs_attr_leaf_entry_t);
++			ichdr->freemap[i].size -=
++				min_t(uint16_t, ichdr->freemap[i].size,
++						sizeof(xfs_attr_leaf_entry_t));
+ 		}
+ 	}
+ 	ichdr->usedbytes += xfs_attr_leaf_entsize(leaf, args->index);
+diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c
+index bbd1238852b3c..df7f33e60a4f6 100644
+--- a/fs/xfs/libxfs/xfs_dir2_node.c
++++ b/fs/xfs/libxfs/xfs_dir2_node.c
+@@ -212,6 +212,7 @@ __xfs_dir3_free_read(
+ 		xfs_buf_ioerror(*bpp, -EFSCORRUPTED);
+ 		xfs_verifier_error(*bpp);
+ 		xfs_trans_brelse(tp, *bpp);
++		*bpp = NULL;
+ 		return -EFSCORRUPTED;
+ 	}
+ 
+diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
+index b20a0945b5500..7aea750538840 100644
+--- a/include/linux/debugfs.h
++++ b/include/linux/debugfs.h
+@@ -77,6 +77,8 @@ static const struct file_operations __fops = {				\
+ 	.llseek  = generic_file_llseek,					\
+ }
+ 
++typedef struct vfsmount *(*debugfs_automount_t)(struct dentry *, void *);
++
+ #if defined(CONFIG_DEBUG_FS)
+ 
+ struct dentry *debugfs_create_file(const char *name, umode_t mode,
+@@ -96,7 +98,6 @@ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent);
+ struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent,
+ 				      const char *dest);
+ 
+-typedef struct vfsmount *(*debugfs_automount_t)(struct dentry *, void *);
+ struct dentry *debugfs_create_automount(const char *name,
+ 					struct dentry *parent,
+ 					debugfs_automount_t f,
+@@ -211,7 +212,7 @@ static inline struct dentry *debugfs_create_symlink(const char *name,
+ 
+ static inline struct dentry *debugfs_create_automount(const char *name,
+ 					struct dentry *parent,
+-					struct vfsmount *(*f)(void *),
++					debugfs_automount_t f,
+ 					void *data)
+ {
+ 	return ERR_PTR(-ENODEV);
+diff --git a/include/linux/libata.h b/include/linux/libata.h
+index e2dac33eae964..3fabf57fd6e0d 100644
+--- a/include/linux/libata.h
++++ b/include/linux/libata.h
+@@ -499,6 +499,7 @@ enum hsm_task_states {
+ };
+ 
+ enum ata_completion_errors {
++	AC_ERR_OK		= 0,	    /* no error */
+ 	AC_ERR_DEV		= (1 << 0), /* device reported error */
+ 	AC_ERR_HSM		= (1 << 1), /* host state machine violation */
+ 	AC_ERR_TIMEOUT		= (1 << 2), /* timeout */
+@@ -903,9 +904,9 @@ struct ata_port_operations {
+ 	/*
+ 	 * Command execution
+ 	 */
+-	int  (*qc_defer)(struct ata_queued_cmd *qc);
+-	int  (*check_atapi_dma)(struct ata_queued_cmd *qc);
+-	void (*qc_prep)(struct ata_queued_cmd *qc);
++	int (*qc_defer)(struct ata_queued_cmd *qc);
++	int (*check_atapi_dma)(struct ata_queued_cmd *qc);
++	enum ata_completion_errors (*qc_prep)(struct ata_queued_cmd *qc);
+ 	unsigned int (*qc_issue)(struct ata_queued_cmd *qc);
+ 	bool (*qc_fill_rtf)(struct ata_queued_cmd *qc);
+ 
+@@ -1168,7 +1169,7 @@ extern int ata_xfer_mode2shift(unsigned long xfer_mode);
+ extern const char *ata_mode_string(unsigned long xfer_mask);
+ extern unsigned long ata_id_xfermask(const u16 *id);
+ extern int ata_std_qc_defer(struct ata_queued_cmd *qc);
+-extern void ata_noop_qc_prep(struct ata_queued_cmd *qc);
++extern enum ata_completion_errors ata_noop_qc_prep(struct ata_queued_cmd *qc);
+ extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,
+ 		 unsigned int n_elem);
+ extern unsigned int ata_dev_classify(const struct ata_taskfile *tf);
+@@ -1881,9 +1882,9 @@ extern const struct ata_port_operations ata_bmdma_port_ops;
+ 	.sg_tablesize		= LIBATA_MAX_PRD,		\
+ 	.dma_boundary		= ATA_DMA_BOUNDARY
+ 
+-extern void ata_bmdma_qc_prep(struct ata_queued_cmd *qc);
++extern enum ata_completion_errors ata_bmdma_qc_prep(struct ata_queued_cmd *qc);
+ extern unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc);
+-extern void ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc);
++extern enum ata_completion_errors ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc);
+ extern unsigned int ata_bmdma_port_intr(struct ata_port *ap,
+ 				      struct ata_queued_cmd *qc);
+ extern irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance);
+diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
+index b5b43f94f3116..01b990e4b228a 100644
+--- a/include/linux/mtd/map.h
++++ b/include/linux/mtd/map.h
+@@ -312,7 +312,7 @@ void map_destroy(struct mtd_info *mtd);
+ ({									\
+ 	int i, ret = 1;							\
+ 	for (i = 0; i < map_words(map); i++) {				\
+-		if (((val1).x[i] & (val2).x[i]) != (val2).x[i]) {	\
++		if (((val1).x[i] & (val2).x[i]) != (val3).x[i]) {	\
+ 			ret = 0;					\
+ 			break;						\
+ 		}							\
+diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
+index ead97654c4e9a..1613fe5c668e1 100644
+--- a/include/linux/seqlock.h
++++ b/include/linux/seqlock.h
+@@ -242,6 +242,13 @@ static inline void raw_write_seqcount_end(seqcount_t *s)
+  * usual consistency guarantee. It is one wmb cheaper, because we can
+  * collapse the two back-to-back wmb()s.
+  *
++ * Note that, writes surrounding the barrier should be declared atomic (e.g.
++ * via WRITE_ONCE): a) to ensure the writes become visible to other threads
++ * atomically, avoiding compiler optimizations; b) to document which writes are
++ * meant to propagate to the reader critical section. This is necessary because
++ * neither writes before and after the barrier are enclosed in a seq-writer
++ * critical section that would ensure readers are aware of ongoing writes.
++ *
+  *      seqcount_t seq;
+  *      bool X = true, Y = false;
+  *
+@@ -261,11 +268,11 @@ static inline void raw_write_seqcount_end(seqcount_t *s)
+  *
+  *      void write(void)
+  *      {
+- *              Y = true;
++ *              WRITE_ONCE(Y, true);
+  *
+  *              raw_write_seqcount_barrier(seq);
+  *
+- *              X = false;
++ *              WRITE_ONCE(X, false);
+  *      }
+  */
+ static inline void raw_write_seqcount_barrier(seqcount_t *s)
+diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
+index e37112ac332f7..67b798b7115d8 100644
+--- a/include/linux/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -1549,6 +1549,18 @@ static inline __u32 skb_queue_len(const struct sk_buff_head *list_)
+ 	return list_->qlen;
+ }
+ 
++/**
++ *	skb_queue_len_lockless	- get queue length
++ *	@list_: list to measure
++ *
++ *	Return the length of an &sk_buff queue.
++ *	This variant can be used in lockless contexts.
++ */
++static inline __u32 skb_queue_len_lockless(const struct sk_buff_head *list_)
++{
++	return READ_ONCE(list_->qlen);
++}
++
+ /**
+  *	__skb_queue_head_init - initialize non-spinlock portions of sk_buff_head
+  *	@list: queue to initialize
+@@ -1752,7 +1764,7 @@ static inline void __skb_unlink(struct sk_buff *skb, struct sk_buff_head *list)
+ {
+ 	struct sk_buff *next, *prev;
+ 
+-	list->qlen--;
++	WRITE_ONCE(list->qlen, list->qlen - 1);
+ 	next	   = skb->next;
+ 	prev	   = skb->prev;
+ 	skb->next  = skb->prev = NULL;
+@@ -2795,7 +2807,7 @@ static inline int skb_padto(struct sk_buff *skb, unsigned int len)
+  *	is untouched. Otherwise it is extended. Returns zero on
+  *	success. The skb is freed on error.
+  */
+-static inline int skb_put_padto(struct sk_buff *skb, unsigned int len)
++static inline int __must_check skb_put_padto(struct sk_buff *skb, unsigned int len)
+ {
+ 	unsigned int size = skb->len;
+ 
+diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
+index 712469a3103ac..54b30c9bd8b13 100644
+--- a/kernel/audit_watch.c
++++ b/kernel/audit_watch.c
+@@ -316,8 +316,6 @@ static void audit_update_watch(struct audit_parent *parent,
+ 			if (oentry->rule.exe)
+ 				audit_remove_mark(oentry->rule.exe);
+ 
+-			audit_watch_log_rule_change(r, owatch, "updated_rules");
+-
+ 			call_rcu(&oentry->rcu, audit_free_rule_rcu);
+ 		}
+ 
+diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c
+index 8648d7d297081..1253261fdb3ba 100644
+--- a/kernel/bpf/hashtab.c
++++ b/kernel/bpf/hashtab.c
+@@ -427,15 +427,7 @@ static void htab_elem_free_rcu(struct rcu_head *head)
+ 	struct htab_elem *l = container_of(head, struct htab_elem, rcu);
+ 	struct bpf_htab *htab = l->htab;
+ 
+-	/* must increment bpf_prog_active to avoid kprobe+bpf triggering while
+-	 * we're calling kfree, otherwise deadlock is possible if kprobes
+-	 * are placed somewhere inside of slub
+-	 */
+-	preempt_disable();
+-	__this_cpu_inc(bpf_prog_active);
+ 	htab_elem_free(htab, l);
+-	__this_cpu_dec(bpf_prog_active);
+-	preempt_enable();
+ }
+ 
+ static void free_htab_elem(struct bpf_htab *htab, struct htab_elem *l)
+diff --git a/kernel/kprobes.c b/kernel/kprobes.c
+index 9aa2dbe6a4568..3938e4670b89b 100644
+--- a/kernel/kprobes.c
++++ b/kernel/kprobes.c
+@@ -2012,6 +2012,9 @@ static void kill_kprobe(struct kprobe *p)
+ {
+ 	struct kprobe *kp;
+ 
++	if (WARN_ON_ONCE(kprobe_gone(p)))
++		return;
++
+ 	p->flags |= KPROBE_FLAG_GONE;
+ 	if (kprobe_aggrprobe(p)) {
+ 		/*
+@@ -2032,9 +2035,10 @@ static void kill_kprobe(struct kprobe *p)
+ 
+ 	/*
+ 	 * The module is going away. We should disarm the kprobe which
+-	 * is using ftrace.
++	 * is using ftrace, because ftrace framework is still available at
++	 * MODULE_STATE_GOING notification.
+ 	 */
+-	if (kprobe_ftrace(p))
++	if (kprobe_ftrace(p) && !kprobe_disabled(p) && !kprobes_all_disarmed)
+ 		disarm_kprobe_ftrace(p);
+ }
+ 
+@@ -2154,7 +2158,10 @@ static int kprobes_module_callback(struct notifier_block *nb,
+ 	mutex_lock(&kprobe_mutex);
+ 	for (i = 0; i < KPROBE_TABLE_SIZE; i++) {
+ 		head = &kprobe_table[i];
+-		hlist_for_each_entry_rcu(p, head, hlist)
++		hlist_for_each_entry_rcu(p, head, hlist) {
++			if (kprobe_gone(p))
++				continue;
++
+ 			if (within_module_init((unsigned long)p->addr, mod) ||
+ 			    (checkcore &&
+ 			     within_module_core((unsigned long)p->addr, mod))) {
+@@ -2165,6 +2172,7 @@ static int kprobes_module_callback(struct notifier_block *nb,
+ 				 */
+ 				kill_kprobe(p);
+ 			}
++		}
+ 	}
+ 	mutex_unlock(&kprobe_mutex);
+ 	return NOTIFY_DONE;
+diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
+index c1873d325ebda..7acae2f2478d9 100644
+--- a/kernel/printk/printk.c
++++ b/kernel/printk/printk.c
+@@ -2035,6 +2035,9 @@ static int __init console_setup(char *str)
+ 	char *s, *options, *brl_options = NULL;
+ 	int idx;
+ 
++	if (str[0] == 0)
++		return 1;
++
+ 	if (_braille_console_setup(&str, &brl_options))
+ 		return 1;
+ 
+diff --git a/kernel/sys.c b/kernel/sys.c
+index 157277cbf83aa..546cdc911dad4 100644
+--- a/kernel/sys.c
++++ b/kernel/sys.c
+@@ -1183,11 +1183,13 @@ SYSCALL_DEFINE1(uname, struct old_utsname __user *, name)
+ 
+ SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
+ {
+-	struct oldold_utsname tmp = {};
++	struct oldold_utsname tmp;
+ 
+ 	if (!name)
+ 		return -EFAULT;
+ 
++	memset(&tmp, 0, sizeof(tmp));
++
+ 	down_read(&uts_sem);
+ 	memcpy(&tmp.sysname, &utsname()->sysname, __OLD_UTS_LEN);
+ 	memcpy(&tmp.nodename, &utsname()->nodename, __OLD_UTS_LEN);
+diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
+index e24e1f0c56906..e21b4d8b72405 100644
+--- a/kernel/time/timekeeping.c
++++ b/kernel/time/timekeeping.c
+@@ -950,9 +950,8 @@ static int scale64_check_overflow(u64 mult, u64 div, u64 *base)
+ 	    ((int)sizeof(u64)*8 - fls64(mult) < fls64(rem)))
+ 		return -EOVERFLOW;
+ 	tmp *= mult;
+-	rem *= mult;
+ 
+-	do_div(rem, div);
++	rem = div64_u64(rem * mult, div);
+ 	*base = tmp + rem;
+ 	return 0;
+ }
+diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
+index b2fb25aefb2fc..2388fb50d1885 100644
+--- a/kernel/trace/trace.c
++++ b/kernel/trace/trace.c
+@@ -2600,6 +2600,9 @@ int trace_array_printk(struct trace_array *tr,
+ 	if (!(global_trace.trace_flags & TRACE_ITER_PRINTK))
+ 		return 0;
+ 
++	if (!tr)
++		return -ENOENT;
++
+ 	va_start(ap, fmt);
+ 	ret = trace_array_vprintk(tr, ip, fmt, ap);
+ 	va_end(ap);
+@@ -7693,7 +7696,7 @@ __init static int tracer_alloc_buffers(void)
+ 		goto out_free_buffer_mask;
+ 
+ 	/* Only allocate trace_printk buffers if a trace_printk exists */
+-	if (__stop___trace_bprintk_fmt != __start___trace_bprintk_fmt)
++	if (&__stop___trace_bprintk_fmt != &__start___trace_bprintk_fmt)
+ 		/* Must be called before global_trace.buffer is allocated */
+ 		trace_printk_init_buffers();
+ 
+diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h
+index d1cc37e78f997..1430f6bbb1a07 100644
+--- a/kernel/trace/trace_entries.h
++++ b/kernel/trace/trace_entries.h
+@@ -178,7 +178,7 @@ FTRACE_ENTRY(kernel_stack, stack_entry,
+ 
+ 	F_STRUCT(
+ 		__field(	int,		size	)
+-		__dynamic_array(unsigned long,	caller	)
++		__array(	unsigned long,	caller,	FTRACE_STACK_ENTRIES	)
+ 	),
+ 
+ 	F_printk("\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n"
+diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
+index af969f753e5e9..5bf072e437c41 100644
+--- a/kernel/trace/trace_events.c
++++ b/kernel/trace/trace_events.c
+@@ -790,6 +790,8 @@ static int ftrace_set_clr_event(struct trace_array *tr, char *buf, int set)
+ 	char *event = NULL, *sub = NULL, *match;
+ 	int ret;
+ 
++	if (!tr)
++		return -ENOENT;
+ 	/*
+ 	 * The buf format can be <subsystem>:<event-name>
+ 	 *  *:<event-name> means any event by that name.
+diff --git a/lib/string.c b/lib/string.c
+index 8f1a2a04e22f5..d099762a9bd60 100644
+--- a/lib/string.c
++++ b/lib/string.c
+@@ -235,6 +235,30 @@ ssize_t strscpy(char *dest, const char *src, size_t count)
+ EXPORT_SYMBOL(strscpy);
+ #endif
+ 
++/**
++ * stpcpy - copy a string from src to dest returning a pointer to the new end
++ *          of dest, including src's %NUL-terminator. May overrun dest.
++ * @dest: pointer to end of string being copied into. Must be large enough
++ *        to receive copy.
++ * @src: pointer to the beginning of string being copied from. Must not overlap
++ *       dest.
++ *
++ * stpcpy differs from strcpy in a key way: the return value is a pointer
++ * to the new %NUL-terminating character in @dest. (For strcpy, the return
++ * value is a pointer to the start of @dest). This interface is considered
++ * unsafe as it doesn't perform bounds checking of the inputs. As such it's
++ * not recommended for usage. Instead, its definition is provided in case
++ * the compiler lowers other libcalls to stpcpy.
++ */
++char *stpcpy(char *__restrict__ dest, const char *__restrict__ src);
++char *stpcpy(char *__restrict__ dest, const char *__restrict__ src)
++{
++	while ((*dest++ = *src++) != '\0')
++		/* nothing */;
++	return --dest;
++}
++EXPORT_SYMBOL(stpcpy);
++
+ #ifndef __HAVE_ARCH_STRCAT
+ /**
+  * strcat - Append one %NUL-terminated string to another
+diff --git a/mm/filemap.c b/mm/filemap.c
+index b046d8f147e20..05af91f495f53 100644
+--- a/mm/filemap.c
++++ b/mm/filemap.c
+@@ -2474,6 +2474,14 @@ filler:
+ 		unlock_page(page);
+ 		goto out;
+ 	}
++
++	/*
++	 * A previous I/O error may have been due to temporary
++	 * failures.
++	 * Clear page error before actual read, PG_error will be
++	 * set again if read page fails.
++	 */
++	ClearPageError(page);
+ 	goto filler;
+ 
+ out:
+diff --git a/mm/mmap.c b/mm/mmap.c
+index 7109f886e739e..7c8815636c482 100644
+--- a/mm/mmap.c
++++ b/mm/mmap.c
+@@ -2028,6 +2028,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	info.low_limit = mm->mmap_base;
+ 	info.high_limit = TASK_SIZE;
+ 	info.align_mask = 0;
++	info.align_offset = 0;
+ 	return vm_unmapped_area(&info);
+ }
+ #endif
+@@ -2069,6 +2070,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	info.low_limit = max(PAGE_SIZE, mmap_min_addr);
+ 	info.high_limit = mm->mmap_base;
+ 	info.align_mask = 0;
++	info.align_offset = 0;
+ 	addr = vm_unmapped_area(&info);
+ 
+ 	/*
+diff --git a/mm/pagewalk.c b/mm/pagewalk.c
+index d95341cffc2f6..8d6290502631a 100644
+--- a/mm/pagewalk.c
++++ b/mm/pagewalk.c
+@@ -14,9 +14,9 @@ static int walk_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
+ 		err = walk->pte_entry(pte, addr, addr + PAGE_SIZE, walk);
+ 		if (err)
+ 		       break;
+-		addr += PAGE_SIZE;
+-		if (addr == end)
++		if (addr >= end - PAGE_SIZE)
+ 			break;
++		addr += PAGE_SIZE;
+ 		pte++;
+ 	}
+ 
+diff --git a/net/atm/lec.c b/net/atm/lec.c
+index 704892d79bf19..756429c95e859 100644
+--- a/net/atm/lec.c
++++ b/net/atm/lec.c
+@@ -1290,6 +1290,12 @@ static void lec_arp_clear_vccs(struct lec_arp_table *entry)
+ 		entry->vcc = NULL;
+ 	}
+ 	if (entry->recv_vcc) {
++		struct atm_vcc *vcc = entry->recv_vcc;
++		struct lec_vcc_priv *vpriv = LEC_VCC_PRIV(vcc);
++
++		kfree(vpriv);
++		vcc->user_back = NULL;
++
+ 		entry->recv_vcc->push = entry->old_recv_push;
+ 		vcc_release_async(entry->recv_vcc, -EPIPE);
+ 		entry->recv_vcc = NULL;
+diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
+index e545b42ab0b98..516c45771d59b 100644
+--- a/net/batman-adv/bridge_loop_avoidance.c
++++ b/net/batman-adv/bridge_loop_avoidance.c
+@@ -36,6 +36,7 @@
+ #include <linux/lockdep.h>
+ #include <linux/netdevice.h>
+ #include <linux/netlink.h>
++#include <linux/preempt.h>
+ #include <linux/rculist.h>
+ #include <linux/rcupdate.h>
+ #include <linux/seq_file.h>
+@@ -95,11 +96,12 @@ static inline u32 batadv_choose_claim(const void *data, u32 size)
+  */
+ static inline u32 batadv_choose_backbone_gw(const void *data, u32 size)
+ {
+-	const struct batadv_bla_claim *claim = (struct batadv_bla_claim *)data;
++	const struct batadv_bla_backbone_gw *gw;
+ 	u32 hash = 0;
+ 
+-	hash = jhash(&claim->addr, sizeof(claim->addr), hash);
+-	hash = jhash(&claim->vid, sizeof(claim->vid), hash);
++	gw = (struct batadv_bla_backbone_gw *)data;
++	hash = jhash(&gw->orig, sizeof(gw->orig), hash);
++	hash = jhash(&gw->vid, sizeof(gw->vid), hash);
+ 
+ 	return hash % size;
+ }
+@@ -1820,7 +1822,7 @@ batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb,
+  * @bat_priv: the bat priv with all the soft interface information
+  * @skb: the frame to be checked
+  * @vid: the VLAN ID of the frame
+- * @is_bcast: the packet came in a broadcast packet type.
++ * @packet_type: the batman packet type this frame came in
+  *
+  * batadv_bla_rx avoidance checks if:
+  *  * we have to race for a claim
+@@ -1832,7 +1834,7 @@ batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb,
+  * further process the skb.
+  */
+ bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
+-		   unsigned short vid, bool is_bcast)
++		   unsigned short vid, int packet_type)
+ {
+ 	struct batadv_bla_backbone_gw *backbone_gw;
+ 	struct ethhdr *ethhdr;
+@@ -1854,9 +1856,24 @@ bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ 		goto handled;
+ 
+ 	if (unlikely(atomic_read(&bat_priv->bla.num_requests)))
+-		/* don't allow broadcasts while requests are in flight */
+-		if (is_multicast_ether_addr(ethhdr->h_dest) && is_bcast)
+-			goto handled;
++		/* don't allow multicast packets while requests are in flight */
++		if (is_multicast_ether_addr(ethhdr->h_dest))
++			/* Both broadcast flooding or multicast-via-unicasts
++			 * delivery might send to multiple backbone gateways
++			 * sharing the same LAN and therefore need to coordinate
++			 * which backbone gateway forwards into the LAN,
++			 * by claiming the payload source address.
++			 *
++			 * Broadcast flooding and multicast-via-unicasts
++			 * delivery use the following two batman packet types.
++			 * Note: explicitly exclude BATADV_UNICAST_4ADDR,
++			 * as the DHCP gateway feature will send explicitly
++			 * to only one BLA gateway, so the claiming process
++			 * should be avoided there.
++			 */
++			if (packet_type == BATADV_BCAST ||
++			    packet_type == BATADV_UNICAST)
++				goto handled;
+ 
+ 	ether_addr_copy(search_claim.addr, ethhdr->h_source);
+ 	search_claim.vid = vid;
+@@ -1884,13 +1901,14 @@ bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ 		goto allow;
+ 	}
+ 
+-	/* if it is a broadcast ... */
+-	if (is_multicast_ether_addr(ethhdr->h_dest) && is_bcast) {
++	/* if it is a multicast ... */
++	if (is_multicast_ether_addr(ethhdr->h_dest) &&
++	    (packet_type == BATADV_BCAST || packet_type == BATADV_UNICAST)) {
+ 		/* ... drop it. the responsible gateway is in charge.
+ 		 *
+-		 * We need to check is_bcast because with the gateway
++		 * We need to check packet type because with the gateway
+ 		 * feature, broadcasts (like DHCP requests) may be sent
+-		 * using a unicast packet type.
++		 * using a unicast 4 address packet type. See comment above.
+ 		 */
+ 		goto handled;
+ 	} else {
+diff --git a/net/batman-adv/bridge_loop_avoidance.h b/net/batman-adv/bridge_loop_avoidance.h
+index 1ae93e46fb984..40b8ec9d4b1b5 100644
+--- a/net/batman-adv/bridge_loop_avoidance.h
++++ b/net/batman-adv/bridge_loop_avoidance.h
+@@ -29,7 +29,7 @@ struct sk_buff;
+ 
+ #ifdef CONFIG_BATMAN_ADV_BLA
+ bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
+-		   unsigned short vid, bool is_bcast);
++		   unsigned short vid, int packet_type);
+ bool batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ 		   unsigned short vid);
+ bool batadv_bla_is_backbone_gw(struct sk_buff *skb,
+@@ -56,7 +56,7 @@ int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb);
+ 
+ static inline bool batadv_bla_rx(struct batadv_priv *bat_priv,
+ 				 struct sk_buff *skb, unsigned short vid,
+-				 bool is_bcast)
++				 int packet_type)
+ {
+ 	return false;
+ }
+diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
+index 19059ae26e519..1ba205c3ea9fa 100644
+--- a/net/batman-adv/routing.c
++++ b/net/batman-adv/routing.c
+@@ -803,6 +803,10 @@ static bool batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
+ 	vid = batadv_get_vid(skb, hdr_len);
+ 	ethhdr = (struct ethhdr *)(skb->data + hdr_len);
+ 
++	/* do not reroute multicast frames in a unicast header */
++	if (is_multicast_ether_addr(ethhdr->h_dest))
++		return true;
++
+ 	/* check if the destination client was served by this node and it is now
+ 	 * roaming. In this case, it means that the node has got a ROAM_ADV
+ 	 * message and that it knows the new destination in the mesh to re-route
+diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
+index 99d2c453c8722..af0a8439cf08a 100644
+--- a/net/batman-adv/soft-interface.c
++++ b/net/batman-adv/soft-interface.c
+@@ -415,10 +415,10 @@ void batadv_interface_rx(struct net_device *soft_iface,
+ 	struct vlan_ethhdr *vhdr;
+ 	struct ethhdr *ethhdr;
+ 	unsigned short vid;
+-	bool is_bcast;
++	int packet_type;
+ 
+ 	batadv_bcast_packet = (struct batadv_bcast_packet *)skb->data;
+-	is_bcast = (batadv_bcast_packet->packet_type == BATADV_BCAST);
++	packet_type = batadv_bcast_packet->packet_type;
+ 
+ 	skb_pull_rcsum(skb, hdr_size);
+ 	skb_reset_mac_header(skb);
+@@ -463,7 +463,7 @@ void batadv_interface_rx(struct net_device *soft_iface,
+ 	/* Let the bridge loop avoidance check the packet. If will
+ 	 * not handle it, we can safely push it up.
+ 	 */
+-	if (batadv_bla_rx(bat_priv, skb, vid, is_bcast))
++	if (batadv_bla_rx(bat_priv, skb, vid, packet_type))
+ 		goto out;
+ 
+ 	if (orig_node)
+diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
+index 757977c54d9ef..d6da119f5082e 100644
+--- a/net/bluetooth/hci_event.c
++++ b/net/bluetooth/hci_event.c
+@@ -41,12 +41,27 @@
+ 
+ /* Handle HCI Event packets */
+ 
+-static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
++static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb,
++				  u8 *new_status)
+ {
+ 	__u8 status = *((__u8 *) skb->data);
+ 
+ 	BT_DBG("%s status 0x%2.2x", hdev->name, status);
+ 
++	/* It is possible that we receive Inquiry Complete event right
++	 * before we receive Inquiry Cancel Command Complete event, in
++	 * which case the latter event should have status of Command
++	 * Disallowed (0x0c). This should not be treated as error, since
++	 * we actually achieve what Inquiry Cancel wants to achieve,
++	 * which is to end the last Inquiry session.
++	 */
++	if (status == 0x0c && !test_bit(HCI_INQUIRY, &hdev->flags)) {
++		bt_dev_warn(hdev, "Ignoring error of Inquiry Cancel command");
++		status = 0x00;
++	}
++
++	*new_status = status;
++
+ 	if (status)
+ 		return;
+ 
+@@ -2772,7 +2787,7 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
+ 
+ 	switch (*opcode) {
+ 	case HCI_OP_INQUIRY_CANCEL:
+-		hci_cc_inquiry_cancel(hdev, skb);
++		hci_cc_inquiry_cancel(hdev, skb, status);
+ 		break;
+ 
+ 	case HCI_OP_PERIODIC_INQ:
+@@ -5257,6 +5272,11 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
+ 	u8 status = 0, event = hdr->evt, req_evt = 0;
+ 	u16 opcode = HCI_OP_NOP;
+ 
++	if (!event) {
++		bt_dev_warn(hdev, "Received unexpected HCI Event 00000000");
++		goto done;
++	}
++
+ 	if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->hci.req_event == event) {
+ 		struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
+ 		opcode = __le16_to_cpu(cmd_hdr->opcode);
+@@ -5468,6 +5488,7 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
+ 		req_complete_skb(hdev, status, opcode, orig_skb);
+ 	}
+ 
++done:
+ 	kfree_skb(orig_skb);
+ 	kfree_skb(skb);
+ 	hdev->stat.evt_rx++;
+diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
+index 11012a5090708..5e3f5c1ba07d6 100644
+--- a/net/bluetooth/l2cap_core.c
++++ b/net/bluetooth/l2cap_core.c
+@@ -414,6 +414,9 @@ static void l2cap_chan_timeout(struct work_struct *work)
+ 	BT_DBG("chan %p state %s", chan, state_to_string(chan->state));
+ 
+ 	mutex_lock(&conn->chan_lock);
++	/* __set_chan_timer() calls l2cap_chan_hold(chan) while scheduling
++	 * this work. No need to call l2cap_chan_hold(chan) here again.
++	 */
+ 	l2cap_chan_lock(chan);
+ 
+ 	if (chan->state == BT_CONNECTED || chan->state == BT_CONFIG)
+@@ -426,12 +429,12 @@ static void l2cap_chan_timeout(struct work_struct *work)
+ 
+ 	l2cap_chan_close(chan, reason);
+ 
+-	l2cap_chan_unlock(chan);
+-
+ 	chan->ops->close(chan);
+-	mutex_unlock(&conn->chan_lock);
+ 
++	l2cap_chan_unlock(chan);
+ 	l2cap_chan_put(chan);
++
++	mutex_unlock(&conn->chan_lock);
+ }
+ 
+ struct l2cap_chan *l2cap_chan_create(void)
+@@ -1725,9 +1728,9 @@ static void l2cap_conn_del(struct hci_conn *hcon, int err)
+ 
+ 		l2cap_chan_del(chan, err);
+ 
+-		l2cap_chan_unlock(chan);
+-
+ 		chan->ops->close(chan);
++
++		l2cap_chan_unlock(chan);
+ 		l2cap_chan_put(chan);
+ 	}
+ 
+@@ -4104,7 +4107,8 @@ static inline int l2cap_config_req(struct l2cap_conn *conn,
+ 		return 0;
+ 	}
+ 
+-	if (chan->state != BT_CONFIG && chan->state != BT_CONNECT2) {
++	if (chan->state != BT_CONFIG && chan->state != BT_CONNECT2 &&
++	    chan->state != BT_CONNECTED) {
+ 		cmd_reject_invalid_cid(conn, cmd->ident, chan->scid,
+ 				       chan->dcid);
+ 		goto unlock;
+@@ -4327,6 +4331,7 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn,
+ 		return 0;
+ 	}
+ 
++	l2cap_chan_hold(chan);
+ 	l2cap_chan_lock(chan);
+ 
+ 	rsp.dcid = cpu_to_le16(chan->scid);
+@@ -4335,12 +4340,11 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn,
+ 
+ 	chan->ops->set_shutdown(chan);
+ 
+-	l2cap_chan_hold(chan);
+ 	l2cap_chan_del(chan, ECONNRESET);
+ 
+-	l2cap_chan_unlock(chan);
+-
+ 	chan->ops->close(chan);
++
++	l2cap_chan_unlock(chan);
+ 	l2cap_chan_put(chan);
+ 
+ 	mutex_unlock(&conn->chan_lock);
+@@ -4372,20 +4376,21 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn,
+ 		return 0;
+ 	}
+ 
++	l2cap_chan_hold(chan);
+ 	l2cap_chan_lock(chan);
+ 
+ 	if (chan->state != BT_DISCONN) {
+ 		l2cap_chan_unlock(chan);
++		l2cap_chan_put(chan);
+ 		mutex_unlock(&conn->chan_lock);
+ 		return 0;
+ 	}
+ 
+-	l2cap_chan_hold(chan);
+ 	l2cap_chan_del(chan, 0);
+ 
+-	l2cap_chan_unlock(chan);
+-
+ 	chan->ops->close(chan);
++
++	l2cap_chan_unlock(chan);
+ 	l2cap_chan_put(chan);
+ 
+ 	mutex_unlock(&conn->chan_lock);
+diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
+index a8ba752732c98..bbf08c6092f4a 100644
+--- a/net/bluetooth/l2cap_sock.c
++++ b/net/bluetooth/l2cap_sock.c
+@@ -1038,7 +1038,7 @@ done:
+ }
+ 
+ /* Kill socket (only if zapped and orphan)
+- * Must be called on unlocked socket.
++ * Must be called on unlocked socket, with l2cap channel lock.
+  */
+ static void l2cap_sock_kill(struct sock *sk)
+ {
+@@ -1189,6 +1189,7 @@ static int l2cap_sock_release(struct socket *sock)
+ {
+ 	struct sock *sk = sock->sk;
+ 	int err;
++	struct l2cap_chan *chan;
+ 
+ 	BT_DBG("sock %p, sk %p", sock, sk);
+ 
+@@ -1198,9 +1199,17 @@ static int l2cap_sock_release(struct socket *sock)
+ 	bt_sock_unlink(&l2cap_sk_list, sk);
+ 
+ 	err = l2cap_sock_shutdown(sock, 2);
++	chan = l2cap_pi(sk)->chan;
++
++	l2cap_chan_hold(chan);
++	l2cap_chan_lock(chan);
+ 
+ 	sock_orphan(sk);
+ 	l2cap_sock_kill(sk);
++
++	l2cap_chan_unlock(chan);
++	l2cap_chan_put(chan);
++
+ 	return err;
+ }
+ 
+@@ -1218,12 +1227,15 @@ static void l2cap_sock_cleanup_listen(struct sock *parent)
+ 		BT_DBG("child chan %p state %s", chan,
+ 		       state_to_string(chan->state));
+ 
++		l2cap_chan_hold(chan);
+ 		l2cap_chan_lock(chan);
++
+ 		__clear_chan_timer(chan);
+ 		l2cap_chan_close(chan, ECONNRESET);
+-		l2cap_chan_unlock(chan);
+-
+ 		l2cap_sock_kill(sk);
++
++		l2cap_chan_unlock(chan);
++		l2cap_chan_put(chan);
+ 	}
+ }
+ 
+diff --git a/net/core/neighbour.c b/net/core/neighbour.c
+index 6578d1f8e6c4a..d267dc04d9f74 100644
+--- a/net/core/neighbour.c
++++ b/net/core/neighbour.c
+@@ -2797,6 +2797,7 @@ static void *neigh_stat_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+ 		*pos = cpu+1;
+ 		return per_cpu_ptr(tbl->stats, cpu);
+ 	}
++	(*pos)++;
+ 	return NULL;
+ }
+ 
+diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
+index aead5ac4dbf68..ea07c91ab3488 100644
+--- a/net/hsr/hsr_device.c
++++ b/net/hsr/hsr_device.c
+@@ -315,7 +315,8 @@ static void send_hsr_supervision_frame(struct hsr_port *master,
+ 	hsr_sp = (typeof(hsr_sp)) skb_put(skb, sizeof(struct hsr_sup_payload));
+ 	ether_addr_copy(hsr_sp->MacAddressA, master->dev->dev_addr);
+ 
+-	skb_put_padto(skb, ETH_ZLEN + HSR_HLEN);
++	if (skb_put_padto(skb, ETH_ZLEN + HSR_HLEN))
++		return;
+ 
+ 	hsr_forward_skb(skb, master);
+ 	return;
+diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
+index 4f3decbe6a3a5..c37e9598262e5 100644
+--- a/net/ipv4/ip_output.c
++++ b/net/ipv4/ip_output.c
+@@ -73,6 +73,7 @@
+ #include <net/icmp.h>
+ #include <net/checksum.h>
+ #include <net/inetpeer.h>
++#include <net/inet_ecn.h>
+ #include <net/lwtunnel.h>
+ #include <linux/igmp.h>
+ #include <linux/netfilter_ipv4.h>
+@@ -1611,7 +1612,7 @@ void ip_send_unicast_reply(struct sock *sk, struct sk_buff *skb,
+ 	if (IS_ERR(rt))
+ 		return;
+ 
+-	inet_sk(sk)->tos = arg->tos;
++	inet_sk(sk)->tos = arg->tos & ~INET_ECN_MASK;
+ 
+ 	sk->sk_priority = skb->priority;
+ 	sk->sk_protocol = ip_hdr(skb)->protocol;
+diff --git a/net/ipv4/route.c b/net/ipv4/route.c
+index c8c51bd2d695b..e9aae4686536a 100644
+--- a/net/ipv4/route.c
++++ b/net/ipv4/route.c
+@@ -271,6 +271,7 @@ static void *rt_cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+ 		*pos = cpu+1;
+ 		return &per_cpu(rt_cache_stat, cpu);
+ 	}
++	(*pos)++;
+ 	return NULL;
+ 
+ }
+diff --git a/net/key/af_key.c b/net/key/af_key.c
+index d2ec620319d76..76a008b1cbe5f 100644
+--- a/net/key/af_key.c
++++ b/net/key/af_key.c
+@@ -1873,6 +1873,13 @@ static int pfkey_dump(struct sock *sk, struct sk_buff *skb, const struct sadb_ms
+ 	if (ext_hdrs[SADB_X_EXT_FILTER - 1]) {
+ 		struct sadb_x_filter *xfilter = ext_hdrs[SADB_X_EXT_FILTER - 1];
+ 
++		if ((xfilter->sadb_x_filter_splen >=
++			(sizeof(xfrm_address_t) << 3)) ||
++		    (xfilter->sadb_x_filter_dplen >=
++			(sizeof(xfrm_address_t) << 3))) {
++			mutex_unlock(&pfk->dump_lock);
++			return -EINVAL;
++		}
+ 		filter = kmalloc(sizeof(*filter), GFP_KERNEL);
+ 		if (filter == NULL) {
+ 			mutex_unlock(&pfk->dump_lock);
+diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c
+index bcd1a5e6ebf42..2f873a0dc5836 100644
+--- a/net/mac802154/tx.c
++++ b/net/mac802154/tx.c
+@@ -42,11 +42,11 @@ void ieee802154_xmit_worker(struct work_struct *work)
+ 	if (res)
+ 		goto err_tx;
+ 
+-	ieee802154_xmit_complete(&local->hw, skb, false);
+-
+ 	dev->stats.tx_packets++;
+ 	dev->stats.tx_bytes += skb->len;
+ 
++	ieee802154_xmit_complete(&local->hw, skb, false);
++
+ 	return;
+ 
+ err_tx:
+@@ -86,6 +86,8 @@ ieee802154_tx(struct ieee802154_local *local, struct sk_buff *skb)
+ 
+ 	/* async is priority, otherwise sync is fallback */
+ 	if (local->ops->xmit_async) {
++		unsigned int len = skb->len;
++
+ 		ret = drv_xmit_async(local, skb);
+ 		if (ret) {
+ 			ieee802154_wake_queue(&local->hw);
+@@ -93,7 +95,7 @@ ieee802154_tx(struct ieee802154_local *local, struct sk_buff *skb)
+ 		}
+ 
+ 		dev->stats.tx_packets++;
+-		dev->stats.tx_bytes += skb->len;
++		dev->stats.tx_bytes += len;
+ 	} else {
+ 		local->tx_skb = skb;
+ 		queue_work(local->workqueue, &local->tx_work);
+diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
+index 42ce3ed216376..56e4ac8e2e994 100644
+--- a/net/sunrpc/svc_xprt.c
++++ b/net/sunrpc/svc_xprt.c
+@@ -103,8 +103,17 @@ void svc_unreg_xprt_class(struct svc_xprt_class *xcl)
+ }
+ EXPORT_SYMBOL_GPL(svc_unreg_xprt_class);
+ 
+-/*
+- * Format the transport list for printing
++/**
++ * svc_print_xprts - Format the transport list for printing
++ * @buf: target buffer for formatted address
++ * @maxlen: length of target buffer
++ *
++ * Fills in @buf with a string containing a list of transport names, each name
++ * terminated with '\n'. If the buffer is too small, some entries may be
++ * missing, but it is guaranteed that all lines in the output buffer are
++ * complete.
++ *
++ * Returns positive length of the filled-in string.
+  */
+ int svc_print_xprts(char *buf, int maxlen)
+ {
+@@ -117,9 +126,9 @@ int svc_print_xprts(char *buf, int maxlen)
+ 	list_for_each_entry(xcl, &svc_xprt_class_list, xcl_list) {
+ 		int slen;
+ 
+-		sprintf(tmpstr, "%s %d\n", xcl->xcl_name, xcl->xcl_max_payload);
+-		slen = strlen(tmpstr);
+-		if (len + slen > maxlen)
++		slen = snprintf(tmpstr, sizeof(tmpstr), "%s %d\n",
++				xcl->xcl_name, xcl->xcl_max_payload);
++		if (slen >= sizeof(tmpstr) || len + slen >= maxlen)
+ 			break;
+ 		len += slen;
+ 		strcat(buf, tmpstr);
+diff --git a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
+index 6035c5a380a6b..b3d48c6243c80 100644
+--- a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
++++ b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
+@@ -277,6 +277,7 @@ xprt_rdma_bc_put(struct rpc_xprt *xprt)
+ {
+ 	dprintk("svcrdma: %s: xprt %p\n", __func__, xprt);
+ 
++	xprt_rdma_free_addresses(xprt);
+ 	xprt_free(xprt);
+ 	module_put(THIS_MODULE);
+ }
+diff --git a/net/tipc/msg.c b/net/tipc/msg.c
+index 912f1fb97c06d..ea554756a786d 100644
+--- a/net/tipc/msg.c
++++ b/net/tipc/msg.c
+@@ -140,7 +140,8 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf)
+ 	if (fragid == FIRST_FRAGMENT) {
+ 		if (unlikely(head))
+ 			goto err;
+-		if (unlikely(skb_unclone(frag, GFP_ATOMIC)))
++		frag = skb_unshare(frag, GFP_ATOMIC);
++		if (unlikely(!frag))
+ 			goto err;
+ 		head = *headbuf = frag;
+ 		*buf = NULL;
+diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
+index 32ae82a5596d9..bcd6ed6e7e25c 100644
+--- a/net/unix/af_unix.c
++++ b/net/unix/af_unix.c
+@@ -191,11 +191,17 @@ static inline int unix_may_send(struct sock *sk, struct sock *osk)
+ 	return unix_peer(osk) == NULL || unix_our_peer(sk, osk);
+ }
+ 
+-static inline int unix_recvq_full(struct sock const *sk)
++static inline int unix_recvq_full(const struct sock *sk)
+ {
+ 	return skb_queue_len(&sk->sk_receive_queue) > sk->sk_max_ack_backlog;
+ }
+ 
++static inline int unix_recvq_full_lockless(const struct sock *sk)
++{
++	return skb_queue_len_lockless(&sk->sk_receive_queue) >
++		READ_ONCE(sk->sk_max_ack_backlog);
++}
++
+ struct sock *unix_peer_get(struct sock *s)
+ {
+ 	struct sock *peer;
+@@ -1793,7 +1799,8 @@ restart_locked:
+ 	 * - unix_peer(sk) == sk by time of get but disconnected before lock
+ 	 */
+ 	if (other != sk &&
+-	    unlikely(unix_peer(other) != sk && unix_recvq_full(other))) {
++	    unlikely(unix_peer(other) != sk &&
++	    unix_recvq_full_lockless(other))) {
+ 		if (timeo) {
+ 			timeo = unix_wait_for_peer(other, timeo);
+ 
+diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
+index 72c145dd799f1..ef1226c1c3add 100644
+--- a/security/selinux/selinuxfs.c
++++ b/security/selinux/selinuxfs.c
+@@ -1416,6 +1416,7 @@ static struct avc_cache_stats *sel_avc_get_stat_idx(loff_t *idx)
+ 		*idx = cpu + 1;
+ 		return &per_cpu(avc_cache_stats, cpu);
+ 	}
++	(*idx)++;
+ 	return NULL;
+ }
+ 
+diff --git a/sound/hda/hdac_bus.c b/sound/hda/hdac_bus.c
+index 0e81ea89a5965..e3f68a76d90eb 100644
+--- a/sound/hda/hdac_bus.c
++++ b/sound/hda/hdac_bus.c
+@@ -155,6 +155,7 @@ static void process_unsol_events(struct work_struct *work)
+ 	struct hdac_driver *drv;
+ 	unsigned int rp, caddr, res;
+ 
++	spin_lock_irq(&bus->reg_lock);
+ 	while (bus->unsol_rp != bus->unsol_wp) {
+ 		rp = (bus->unsol_rp + 1) % HDA_UNSOL_QUEUE_SIZE;
+ 		bus->unsol_rp = rp;
+@@ -166,10 +167,13 @@ static void process_unsol_events(struct work_struct *work)
+ 		codec = bus->caddr_tbl[caddr & 0x0f];
+ 		if (!codec || !codec->dev.driver)
+ 			continue;
++		spin_unlock_irq(&bus->reg_lock);
+ 		drv = drv_to_hdac_driver(codec->dev.driver);
+ 		if (drv->unsol_event)
+ 			drv->unsol_event(codec, res);
++		spin_lock_irq(&bus->reg_lock);
+ 	}
++	spin_unlock_irq(&bus->reg_lock);
+ }
+ 
+ /**
+diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c
+index 3ef9af53ef497..0d5ff00cdabca 100644
+--- a/sound/pci/asihpi/hpioctl.c
++++ b/sound/pci/asihpi/hpioctl.c
+@@ -346,7 +346,7 @@ int asihpi_adapter_probe(struct pci_dev *pci_dev,
+ 	struct hpi_message hm;
+ 	struct hpi_response hr;
+ 	struct hpi_adapter adapter;
+-	struct hpi_pci pci;
++	struct hpi_pci pci = { 0 };
+ 
+ 	memset(&adapter, 0, sizeof(adapter));
+ 
+@@ -502,7 +502,7 @@ int asihpi_adapter_probe(struct pci_dev *pci_dev,
+ 	return 0;
+ 
+ err:
+-	for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) {
++	while (--idx >= 0) {
+ 		if (pci.ap_mem_base[idx]) {
+ 			iounmap(pci.ap_mem_base[idx]);
+ 			pci.ap_mem_base[idx] = NULL;
+diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
+index bd0e4710d15d7..79043b481d7b6 100644
+--- a/sound/pci/hda/hda_controller.c
++++ b/sound/pci/hda/hda_controller.c
+@@ -1158,16 +1158,23 @@ irqreturn_t azx_interrupt(int irq, void *dev_id)
+ 		if (snd_hdac_bus_handle_stream_irq(bus, status, stream_update))
+ 			active = true;
+ 
+-		/* clear rirb int */
+ 		status = azx_readb(chip, RIRBSTS);
+ 		if (status & RIRB_INT_MASK) {
++			/*
++			 * Clearing the interrupt status here ensures that no
++			 * interrupt gets masked after the RIRB wp is read in
++			 * snd_hdac_bus_update_rirb. This avoids a possible
++			 * race condition where codec response in RIRB may
++			 * remain unserviced by IRQ, eventually falling back
++			 * to polling mode in azx_rirb_get_response.
++			 */
++			azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
+ 			active = true;
+ 			if (status & RIRB_INT_RESPONSE) {
+ 				if (chip->driver_caps & AZX_DCAPS_CTX_WORKAROUND)
+ 					udelay(80);
+ 				snd_hdac_bus_update_rirb(bus);
+ 			}
+-			azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
+ 		}
+ 	} while (active && ++repeat < 10);
+ 
+diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c
+index dafd22e874e99..e655425e4819e 100644
+--- a/sound/soc/kirkwood/kirkwood-dma.c
++++ b/sound/soc/kirkwood/kirkwood-dma.c
+@@ -136,7 +136,7 @@ static int kirkwood_dma_open(struct snd_pcm_substream *substream)
+ 		err = request_irq(priv->irq, kirkwood_dma_irq, IRQF_SHARED,
+ 				  "kirkwood-i2s", priv);
+ 		if (err)
+-			return -EBUSY;
++			return err;
+ 
+ 		/*
+ 		 * Enable Error interrupts. We're only ack'ing them but
+diff --git a/sound/usb/midi.c b/sound/usb/midi.c
+index 0676e7d485def..b8d4b5b3e54a1 100644
+--- a/sound/usb/midi.c
++++ b/sound/usb/midi.c
+@@ -1805,6 +1805,28 @@ static int snd_usbmidi_create_endpoints(struct snd_usb_midi *umidi,
+ 	return 0;
+ }
+ 
++static struct usb_ms_endpoint_descriptor *find_usb_ms_endpoint_descriptor(
++					struct usb_host_endpoint *hostep)
++{
++	unsigned char *extra = hostep->extra;
++	int extralen = hostep->extralen;
++
++	while (extralen > 3) {
++		struct usb_ms_endpoint_descriptor *ms_ep =
++				(struct usb_ms_endpoint_descriptor *)extra;
++
++		if (ms_ep->bLength > 3 &&
++		    ms_ep->bDescriptorType == USB_DT_CS_ENDPOINT &&
++		    ms_ep->bDescriptorSubtype == UAC_MS_GENERAL)
++			return ms_ep;
++		if (!extra[0])
++			break;
++		extralen -= extra[0];
++		extra += extra[0];
++	}
++	return NULL;
++}
++
+ /*
+  * Returns MIDIStreaming device capabilities.
+  */
+@@ -1842,11 +1864,8 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi *umidi,
+ 		ep = get_ep_desc(hostep);
+ 		if (!usb_endpoint_xfer_bulk(ep) && !usb_endpoint_xfer_int(ep))
+ 			continue;
+-		ms_ep = (struct usb_ms_endpoint_descriptor *)hostep->extra;
+-		if (hostep->extralen < 4 ||
+-		    ms_ep->bLength < 4 ||
+-		    ms_ep->bDescriptorType != USB_DT_CS_ENDPOINT ||
+-		    ms_ep->bDescriptorSubtype != UAC_MS_GENERAL)
++		ms_ep = find_usb_ms_endpoint_descriptor(hostep);
++		if (!ms_ep)
+ 			continue;
+ 		if (usb_endpoint_dir_out(ep)) {
+ 			if (endpoints[epidx].out_ep) {
+diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
+index 08e1af85af384..66b7ccb33c7b1 100644
+--- a/sound/usb/quirks.c
++++ b/sound/usb/quirks.c
+@@ -1320,12 +1320,13 @@ void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
+ 	    && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
+ 		mdelay(20);
+ 
+-	/* Zoom R16/24, Logitech H650e, Jabra 550a, Kingston HyperX needs a tiny
+-	 * delay here, otherwise requests like get/set frequency return as
+-	 * failed despite actually succeeding.
++	/* Zoom R16/24, Logitech H650e/H570e, Jabra 550a, Kingston HyperX
++	 *  needs a tiny delay here, otherwise requests like get/set
++	 *  frequency return as failed despite actually succeeding.
+ 	 */
+ 	if ((chip->usb_id == USB_ID(0x1686, 0x00dd) ||
+ 	     chip->usb_id == USB_ID(0x046d, 0x0a46) ||
++	     chip->usb_id == USB_ID(0x046d, 0x0a56) ||
+ 	     chip->usb_id == USB_ID(0x0b0e, 0x0349) ||
+ 	     chip->usb_id == USB_ID(0x0951, 0x16ad)) &&
+ 	    (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
+diff --git a/tools/gpio/gpio-hammer.c b/tools/gpio/gpio-hammer.c
+index 37b3f141053df..85f45800f881f 100644
+--- a/tools/gpio/gpio-hammer.c
++++ b/tools/gpio/gpio-hammer.c
+@@ -171,7 +171,14 @@ int main(int argc, char **argv)
+ 			device_name = optarg;
+ 			break;
+ 		case 'o':
+-			lines[i] = strtoul(optarg, NULL, 10);
++			/*
++			 * Avoid overflow. Do not immediately error, we want to
++			 * be able to accurately report on the amount of times
++			 * '-o' was given to give an accurate error message
++			 */
++			if (i < GPIOHANDLES_MAX)
++				lines[i] = strtoul(optarg, NULL, 10);
++
+ 			i++;
+ 			break;
+ 		case '?':
+@@ -179,6 +186,14 @@ int main(int argc, char **argv)
+ 			return -1;
+ 		}
+ 	}
++
++	if (i >= GPIOHANDLES_MAX) {
++		fprintf(stderr,
++			"Only %d occurences of '-o' are allowed, %d were found\n",
++			GPIOHANDLES_MAX, i + 1);
++		return -1;
++	}
++
+ 	nlines = i;
+ 
+ 	if (!device_name || !nlines) {
+diff --git a/tools/objtool/check.c b/tools/objtool/check.c
+index c7399d7f4bc77..31c512f19662e 100644
+--- a/tools/objtool/check.c
++++ b/tools/objtool/check.c
+@@ -502,7 +502,7 @@ static int add_jump_destinations(struct objtool_file *file)
+ 		    insn->type != INSN_JUMP_UNCONDITIONAL)
+ 			continue;
+ 
+-		if (insn->ignore || insn->offset == FAKE_JUMP_OFFSET)
++		if (insn->offset == FAKE_JUMP_OFFSET)
+ 			continue;
+ 
+ 		rela = find_rela_by_dest_range(insn->sec, insn->offset,
+diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
+index 031e64ce71564..013e3f5102258 100644
+--- a/tools/perf/util/sort.c
++++ b/tools/perf/util/sort.c
+@@ -2532,7 +2532,7 @@ static char *prefix_if_not_in(const char *pre, char *str)
+ 		return str;
+ 
+ 	if (asprintf(&n, "%s,%s", pre, str) < 0)
+-		return NULL;
++		n = NULL;
+ 
+ 	free(str);
+ 	return n;
+diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
+index 5a50326c8158f..e155783c601ab 100644
+--- a/tools/perf/util/symbol-elf.c
++++ b/tools/perf/util/symbol-elf.c
+@@ -1421,6 +1421,7 @@ struct kcore_copy_info {
+ 	u64 first_symbol;
+ 	u64 last_symbol;
+ 	u64 first_module;
++	u64 first_module_symbol;
+ 	u64 last_module_symbol;
+ 	struct phdr_data kernel_map;
+ 	struct phdr_data modules_map;
+@@ -1435,6 +1436,8 @@ static int kcore_copy__process_kallsyms(void *arg, const char *name, char type,
+ 		return 0;
+ 
+ 	if (strchr(name, '[')) {
++		if (!kci->first_module_symbol || start < kci->first_module_symbol)
++			kci->first_module_symbol = start;
+ 		if (start > kci->last_module_symbol)
+ 			kci->last_module_symbol = start;
+ 		return 0;
+@@ -1559,6 +1562,10 @@ static int kcore_copy__calc_maps(struct kcore_copy_info *kci, const char *dir,
+ 		kci->etext += page_size;
+ 	}
+ 
++	if (kci->first_module_symbol &&
++	    (!kci->first_module || kci->first_module_symbol < kci->first_module))
++		kci->first_module = kci->first_module_symbol;
++
+ 	kci->first_module = round_down(kci->first_module, page_size);
+ 
+ 	if (kci->last_module_symbol) {
+diff --git a/tools/testing/selftests/x86/syscall_nt.c b/tools/testing/selftests/x86/syscall_nt.c
+index 43fcab367fb0a..74e6b3fc2d09e 100644
+--- a/tools/testing/selftests/x86/syscall_nt.c
++++ b/tools/testing/selftests/x86/syscall_nt.c
+@@ -67,6 +67,7 @@ static void do_it(unsigned long extraflags)
+ 	set_eflags(get_eflags() | extraflags);
+ 	syscall(SYS_getpid);
+ 	flags = get_eflags();
++	set_eflags(X86_EFLAGS_IF | X86_EFLAGS_FIXED);
+ 	if ((flags & extraflags) == extraflags) {
+ 		printf("[OK]\tThe syscall worked and flags are still set\n");
+ 	} else {
+diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
+index 4e4bb5dd2dcd5..5bddabb3de7c3 100644
+--- a/virt/kvm/kvm_main.c
++++ b/virt/kvm/kvm_main.c
+@@ -154,6 +154,7 @@ bool kvm_is_reserved_pfn(kvm_pfn_t pfn)
+ 	 */
+ 	if (pfn_valid(pfn))
+ 		return PageReserved(pfn_to_page(pfn)) &&
++		       !is_zero_pfn(pfn) &&
+ 		       !kvm_is_zone_device_pfn(pfn);
+ 
+ 	return true;
+@@ -3639,7 +3640,7 @@ int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
+ void kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
+ 			       struct kvm_io_device *dev)
+ {
+-	int i;
++	int i, j;
+ 	struct kvm_io_bus *new_bus, *bus;
+ 
+ 	bus = kvm->buses[bus_idx];
+@@ -3656,17 +3657,20 @@ void kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
+ 
+ 	new_bus = kmalloc(sizeof(*bus) + ((bus->dev_count - 1) *
+ 			  sizeof(struct kvm_io_range)), GFP_KERNEL);
+-	if (!new_bus)  {
++	if (new_bus) {
++		memcpy(new_bus, bus, sizeof(*bus) + i * sizeof(struct kvm_io_range));
++		new_bus->dev_count--;
++		memcpy(new_bus->range + i, bus->range + i + 1,
++		       (new_bus->dev_count - i) * sizeof(struct kvm_io_range));
++	} else {
+ 		pr_err("kvm: failed to shrink bus, removing it completely\n");
+-		goto broken;
++		for (j = 0; j < bus->dev_count; j++) {
++			if (j == i)
++				continue;
++			kvm_iodevice_destructor(bus->range[j].dev);
++		}
+ 	}
+ 
+-	memcpy(new_bus, bus, sizeof(*bus) + i * sizeof(struct kvm_io_range));
+-	new_bus->dev_count--;
+-	memcpy(new_bus->range + i, bus->range + i + 1,
+-	       (new_bus->dev_count - i) * sizeof(struct kvm_io_range));
+-
+-broken:
+ 	rcu_assign_pointer(kvm->buses[bus_idx], new_bus);
+ 	synchronize_srcu_expedited(&kvm->srcu);
+ 	kfree(bus);