diff --git a/Makefile b/Makefile
index 34d2be9c8459..bea8f3f591c4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 4
-SUBLEVEL = 193
+SUBLEVEL = 194
 EXTRAVERSION =
 NAME = Blurry Fish Butt
 
diff --git a/arch/arc/configs/axs101_defconfig b/arch/arc/configs/axs101_defconfig
index 3023f91c77c2..9843e52bbb13 100644
--- a/arch/arc/configs/axs101_defconfig
+++ b/arch/arc/configs/axs101_defconfig
@@ -11,7 +11,6 @@ CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
 # CONFIG_PID_NS is not set
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="../arc_initramfs/"
 CONFIG_EMBEDDED=y
 CONFIG_PERF_EVENTS=y
 # CONFIG_VM_EVENT_COUNTERS is not set
diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig
index f18107185f53..27c6cb573686 100644
--- a/arch/arc/configs/axs103_defconfig
+++ b/arch/arc/configs/axs103_defconfig
@@ -11,7 +11,6 @@ CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
 # CONFIG_PID_NS is not set
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="../../arc_initramfs_hs/"
 CONFIG_EMBEDDED=y
 CONFIG_PERF_EVENTS=y
 # CONFIG_VM_EVENT_COUNTERS is not set
diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig
index 6e1dd8521d2a..72f34534983f 100644
--- a/arch/arc/configs/axs103_smp_defconfig
+++ b/arch/arc/configs/axs103_smp_defconfig
@@ -11,7 +11,6 @@ CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
 # CONFIG_PID_NS is not set
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="../../arc_initramfs_hs/"
 CONFIG_EMBEDDED=y
 CONFIG_PERF_EVENTS=y
 # CONFIG_VM_EVENT_COUNTERS is not set
diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig
index 86e5a62556a8..c93370cc840a 100644
--- a/arch/arc/configs/nsim_700_defconfig
+++ b/arch/arc/configs/nsim_700_defconfig
@@ -11,7 +11,6 @@ CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
 # CONFIG_PID_NS is not set
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="../arc_initramfs/"
 CONFIG_KALLSYMS_ALL=y
 CONFIG_EMBEDDED=y
 # CONFIG_SLUB_DEBUG is not set
diff --git a/arch/arc/configs/nsim_hs_defconfig b/arch/arc/configs/nsim_hs_defconfig
index f68838e8068a..27c73028b798 100644
--- a/arch/arc/configs/nsim_hs_defconfig
+++ b/arch/arc/configs/nsim_hs_defconfig
@@ -12,7 +12,6 @@ CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
 # CONFIG_PID_NS is not set
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="../arc_initramfs_hs/"
 CONFIG_KALLSYMS_ALL=y
 CONFIG_EMBEDDED=y
 # CONFIG_SLUB_DEBUG is not set
diff --git a/arch/arc/configs/nsim_hs_smp_defconfig b/arch/arc/configs/nsim_hs_smp_defconfig
index 96bd1c20fb0b..c3605874487b 100644
--- a/arch/arc/configs/nsim_hs_smp_defconfig
+++ b/arch/arc/configs/nsim_hs_smp_defconfig
@@ -9,7 +9,6 @@ CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
 # CONFIG_PID_NS is not set
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="../arc_initramfs_hs/"
 CONFIG_KALLSYMS_ALL=y
 CONFIG_EMBEDDED=y
 # CONFIG_SLUB_DEBUG is not set
diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig
index a4d7b919224a..b7dbb20cd28b 100644
--- a/arch/arc/configs/nsimosci_defconfig
+++ b/arch/arc/configs/nsimosci_defconfig
@@ -12,7 +12,6 @@ CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
 # CONFIG_PID_NS is not set
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="../arc_initramfs/"
 CONFIG_KALLSYMS_ALL=y
 CONFIG_EMBEDDED=y
 # CONFIG_SLUB_DEBUG is not set
diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig
index b3fb49c8bd14..ce22594bb0c7 100644
--- a/arch/arc/configs/nsimosci_hs_defconfig
+++ b/arch/arc/configs/nsimosci_hs_defconfig
@@ -12,7 +12,6 @@ CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
 # CONFIG_PID_NS is not set
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="../arc_initramfs_hs/"
 CONFIG_KALLSYMS_ALL=y
 CONFIG_EMBEDDED=y
 # CONFIG_SLUB_DEBUG is not set
diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig
index 710c167bbdd8..f9e5aef7e04e 100644
--- a/arch/arc/configs/nsimosci_hs_smp_defconfig
+++ b/arch/arc/configs/nsimosci_hs_smp_defconfig
@@ -9,7 +9,6 @@ CONFIG_IKCONFIG_PROC=y
 # CONFIG_UTS_NS is not set
 # CONFIG_PID_NS is not set
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="../arc_initramfs_hs/"
 # CONFIG_COMPAT_BRK is not set
 CONFIG_KPROBES=y
 CONFIG_MODULES=y
diff --git a/arch/arc/kernel/traps.c b/arch/arc/kernel/traps.c
index 2fb0cd39a31c..cd6e3615e3d1 100644
--- a/arch/arc/kernel/traps.c
+++ b/arch/arc/kernel/traps.c
@@ -163,3 +163,4 @@ void abort(void)
 {
 	__asm__ __volatile__("trap_s  5\n");
 }
+EXPORT_SYMBOL(abort);
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 949696b6f17b..511fd08c784b 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -131,6 +131,9 @@ static int __init omap4_sram_init(void)
 	struct device_node *np;
 	struct gen_pool *sram_pool;
 
+	if (!soc_is_omap44xx() && !soc_is_omap54xx())
+		return 0;
+
 	np = of_find_compatible_node(NULL, NULL, "ti,omap4-mpu");
 	if (!np)
 		pr_warn("%s:Unable to allocate sram needed to handle errata I688\n",
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index a9f6705aea23..731b7e64715b 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -691,7 +691,8 @@ static void update_sections_early(struct section_perm perms[], int n)
 		if (t->flags & PF_KTHREAD)
 			continue;
 		for_each_thread(t, s)
-			set_section_perms(perms, n, true, s->mm);
+			if (s->mm)
+				set_section_perms(perms, n, true, s->mm);
 	}
 	read_unlock(&tasklist_lock);
 	set_section_perms(perms, n, true, current->active_mm);
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 687a3eb8d4d9..422624ca0132 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -761,7 +761,6 @@ config SIBYTE_SWARM
 	select SYS_SUPPORTS_HIGHMEM
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select ZONE_DMA32 if 64BIT
-	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
 
 config SIBYTE_LITTLESUR
 	bool "Sibyte BCM91250C2-LittleSur"
@@ -784,7 +783,6 @@ config SIBYTE_SENTOSA
 	select SYS_HAS_CPU_SB1
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
-	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
 
 config SIBYTE_BIGSUR
 	bool "Sibyte BCM91480B-BigSur"
@@ -798,7 +796,6 @@ config SIBYTE_BIGSUR
 	select SYS_SUPPORTS_HIGHMEM
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select ZONE_DMA32 if 64BIT
-	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
 
 config SNI_RM
 	bool "SNI RM200/300/400"
diff --git a/arch/mips/include/asm/netlogic/xlr/fmn.h b/arch/mips/include/asm/netlogic/xlr/fmn.h
index 5604db3d1836..d79c68fa78d9 100644
--- a/arch/mips/include/asm/netlogic/xlr/fmn.h
+++ b/arch/mips/include/asm/netlogic/xlr/fmn.h
@@ -301,8 +301,6 @@ static inline int nlm_fmn_send(unsigned int size, unsigned int code,
 	for (i = 0; i < 8; i++) {
 		nlm_msgsnd(dest);
 		status = nlm_read_c2_status0();
-		if ((status & 0x2) == 1)
-			pr_info("Send pending fail!\n");
 		if ((status & 0x4) == 0)
 			return 0;
 	}
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h
index 03722d4326a1..82852dfd8dab 100644
--- a/arch/mips/include/asm/smp.h
+++ b/arch/mips/include/asm/smp.h
@@ -25,7 +25,17 @@ extern cpumask_t cpu_sibling_map[];
 extern cpumask_t cpu_core_map[];
 extern cpumask_t cpu_foreign_map;
 
-#define raw_smp_processor_id() (current_thread_info()->cpu)
+static inline int raw_smp_processor_id(void)
+{
+#if defined(__VDSO__)
+	extern int vdso_smp_processor_id(void)
+		__compiletime_error("VDSO should not call smp_processor_id()");
+	return vdso_smp_processor_id();
+#else
+	return current_thread_info()->cpu;
+#endif
+}
+#define raw_smp_processor_id raw_smp_processor_id
 
 /* Map from cpu id to sequential logical cpu number.  This will only
    not be idempotent when cpus failed to come on-line.	*/
diff --git a/arch/mips/sibyte/common/Makefile b/arch/mips/sibyte/common/Makefile
index 3ef3fb658136..b3d6bf23a662 100644
--- a/arch/mips/sibyte/common/Makefile
+++ b/arch/mips/sibyte/common/Makefile
@@ -1,5 +1,4 @@
 obj-y := cfe.o
-obj-$(CONFIG_SWIOTLB)			+= dma.o
 obj-$(CONFIG_SIBYTE_BUS_WATCHER)	+= bus_watcher.o
 obj-$(CONFIG_SIBYTE_CFE_CONSOLE)	+= cfe_console.o
 obj-$(CONFIG_SIBYTE_TBPROF)		+= sb_tbprof.o
diff --git a/arch/mips/sibyte/common/dma.c b/arch/mips/sibyte/common/dma.c
deleted file mode 100644
index eb47a94f3583..000000000000
--- a/arch/mips/sibyte/common/dma.c
+++ /dev/null
@@ -1,14 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- *	DMA support for Broadcom SiByte platforms.
- *
- *	Copyright (c) 2018  Maciej W. Rozycki
- */
-
-#include <linux/swiotlb.h>
-#include <asm/bootinfo.h>
-
-void __init plat_swiotlb_setup(void)
-{
-	swiotlb_init(1);
-}
diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile
index 886005b1e87d..dfd082eb86f8 100644
--- a/arch/mips/vdso/Makefile
+++ b/arch/mips/vdso/Makefile
@@ -6,7 +6,9 @@ ccflags-vdso := \
 	$(filter -I%,$(KBUILD_CFLAGS)) \
 	$(filter -E%,$(KBUILD_CFLAGS)) \
 	$(filter -mmicromips,$(KBUILD_CFLAGS)) \
-	$(filter -march=%,$(KBUILD_CFLAGS))
+	$(filter -march=%,$(KBUILD_CFLAGS)) \
+	$(filter -m%-float,$(KBUILD_CFLAGS)) \
+	-D__VDSO__
 cflags-vdso := $(ccflags-vdso) \
 	$(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \
 	-O2 -g -fPIC -fno-strict-aliasing -fno-common -fno-builtin -G 0 \
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 6a75352f453c..950b0c00a092 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -1487,6 +1487,16 @@ int s390int_to_s390irq(struct kvm_s390_interrupt *s390int,
 	case KVM_S390_MCHK:
 		irq->u.mchk.mcic = s390int->parm64;
 		break;
+	case KVM_S390_INT_PFAULT_INIT:
+		irq->u.ext.ext_params = s390int->parm;
+		irq->u.ext.ext_params2 = s390int->parm64;
+		break;
+	case KVM_S390_RESTART:
+	case KVM_S390_INT_CLOCK_COMP:
+	case KVM_S390_INT_CPU_TIMER:
+		break;
+	default:
+		return -EINVAL;
 	}
 	return 0;
 }
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 23911ecfbad6..14d2ca9c779e 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2541,7 +2541,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
 	}
 	case KVM_S390_INTERRUPT: {
 		struct kvm_s390_interrupt s390int;
-		struct kvm_s390_irq s390irq;
+		struct kvm_s390_irq s390irq = {};
 
 		r = -EFAULT;
 		if (copy_from_user(&s390int, argp, sizeof(s390int)))
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 727693e283da..bcf409997d6d 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -886,7 +886,7 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
 		break;
 	case BPF_ALU64 | BPF_NEG: /* dst = -dst */
 		/* lcgr %dst,%dst */
-		EMIT4(0xb9130000, dst_reg, dst_reg);
+		EMIT4(0xb9030000, dst_reg, dst_reg);
 		break;
 	/*
 	 * BPF_FROM_BE/LE
@@ -1067,8 +1067,8 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
 		/* llgf %w1,map.max_entries(%b2) */
 		EMIT6_DISP_LH(0xe3000000, 0x0016, REG_W1, REG_0, BPF_REG_2,
 			      offsetof(struct bpf_array, map.max_entries));
-		/* clgrj %b3,%w1,0xa,label0: if %b3 >= %w1 goto out */
-		EMIT6_PCREL_LABEL(0xec000000, 0x0065, BPF_REG_3,
+		/* clrj %b3,%w1,0xa,label0: if (u32)%b3 >= (u32)%w1 goto out */
+		EMIT6_PCREL_LABEL(0xec000000, 0x0077, BPF_REG_3,
 				  REG_W1, 0, 0xa);
 
 		/*
@@ -1094,8 +1094,10 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
 		 *         goto out;
 		 */
 
-		/* sllg %r1,%b3,3: %r1 = index * 8 */
-		EMIT6_DISP_LH(0xeb000000, 0x000d, REG_1, BPF_REG_3, REG_0, 3);
+		/* llgfr %r1,%b3: %r1 = (u32) index */
+		EMIT4(0xb9160000, REG_1, BPF_REG_3);
+		/* sllg %r1,%r1,3: %r1 *= 8 */
+		EMIT6_DISP_LH(0xeb000000, 0x000d, REG_1, REG_1, REG_0, 3);
 		/* lg %r1,prog(%b2,%r1) */
 		EMIT6_DISP_LH(0xe3000000, 0x0004, REG_1, BPF_REG_2,
 			      REG_1, offsetof(struct bpf_array, ptrs));
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 00e0226634fa..8b4d022ce0cb 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -38,6 +38,7 @@ REALMODE_CFLAGS	:= $(M16_CFLAGS) -g -Os -D__KERNEL__ \
 
 REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -ffreestanding)
 REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -fno-stack-protector)
+REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -Wno-address-of-packed-member)
 REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), $(cc_stack_align4))
 export REALMODE_CFLAGS
 
diff --git a/arch/x86/include/asm/bootparam_utils.h b/arch/x86/include/asm/bootparam_utils.h
index 0232b5a2a2d9..588d8fbd1e6d 100644
--- a/arch/x86/include/asm/bootparam_utils.h
+++ b/arch/x86/include/asm/bootparam_utils.h
@@ -71,6 +71,7 @@ static void sanitize_boot_params(struct boot_params *boot_params)
 			BOOT_PARAM_PRESERVE(edd_mbr_sig_buf_entries),
 			BOOT_PARAM_PRESERVE(edd_mbr_sig_buffer),
 			BOOT_PARAM_PRESERVE(hdr),
+			BOOT_PARAM_PRESERVE(e820_map),
 			BOOT_PARAM_PRESERVE(eddbuf),
 		};
 
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index fd945099fc95..4d5e8ff3b5e5 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2344,7 +2344,13 @@ unsigned int arch_dynirq_lower_bound(unsigned int from)
 	 * dmar_alloc_hwirq() may be called before setup_IO_APIC(), so use
 	 * gsi_top if ioapic_dynirq_base hasn't been initialized yet.
 	 */
-	return ioapic_initialized ? ioapic_dynirq_base : gsi_top;
+	if (!ioapic_initialized)
+		return gsi_top;
+	/*
+	 * For DT enabled machines ioapic_dynirq_base is irrelevant and not
+	 * updated. So simply return @from if ioapic_dynirq_base == 0.
+	 */
+	return ioapic_dynirq_base ? : from;
 }
 
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 098be61a6b4c..343c8ddad86a 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -7247,6 +7247,7 @@ static int handle_vmread(struct kvm_vcpu *vcpu)
 	unsigned long exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
 	u32 vmx_instruction_info = vmcs_read32(VMX_INSTRUCTION_INFO);
 	gva_t gva = 0;
+	struct x86_exception e;
 
 	if (!nested_vmx_check_permission(vcpu) ||
 	    !nested_vmx_check_vmcs12(vcpu))
@@ -7273,8 +7274,10 @@ static int handle_vmread(struct kvm_vcpu *vcpu)
 				vmx_instruction_info, true, &gva))
 			return 1;
 		/* _system ok, as nested_vmx_check_permission verified cpl=0 */
-		kvm_write_guest_virt_system(vcpu, gva, &field_value,
-					    (is_long_mode(vcpu) ? 8 : 4), NULL);
+		if (kvm_write_guest_virt_system(vcpu, gva, &field_value,
+						(is_long_mode(vcpu) ? 8 : 4),
+						NULL))
+			kvm_inject_page_fault(vcpu, &e);
 	}
 
 	nested_vmx_succeed(vcpu);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 9f70de2ca0e2..74674a6e4827 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4337,6 +4337,13 @@ static int emulator_write_std(struct x86_emulate_ctxt *ctxt, gva_t addr, void *v
 	if (!system && kvm_x86_ops->get_cpl(vcpu) == 3)
 		access |= PFERR_USER_MASK;
 
+	/*
+	 * FIXME: this should call handle_emulation_failure if X86EMUL_IO_NEEDED
+	 * is returned, but our callers are not ready for that and they blindly
+	 * call kvm_inject_page_fault.  Ensure that they at least do not leak
+	 * uninitialized kernel stack memory into cr2 and error code.
+	 */
+	memset(exception, 0, sizeof(*exception));
 	return kvm_write_guest_virt_helper(addr, val, bytes, vcpu,
 					   access, exception);
 }
diff --git a/drivers/atm/Kconfig b/drivers/atm/Kconfig
index 31c60101a69a..7fa840170151 100644
--- a/drivers/atm/Kconfig
+++ b/drivers/atm/Kconfig
@@ -199,7 +199,7 @@ config ATM_NICSTAR_USE_SUNI
 	  make the card work).
 
 config ATM_NICSTAR_USE_IDT77105
-	bool "Use IDT77015 PHY driver (25Mbps)"
+	bool "Use IDT77105 PHY driver (25Mbps)"
 	depends on ATM_NICSTAR
 	help
 	  Support for the PHYsical layer chip in ForeRunner LE25 cards. In
diff --git a/drivers/base/core.c b/drivers/base/core.c
index cb5718d2669e..af948fedd232 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -857,12 +857,63 @@ static inline struct kobject *get_glue_dir(struct device *dev)
  */
 static void cleanup_glue_dir(struct device *dev, struct kobject *glue_dir)
 {
+	unsigned int ref;
+
 	/* see if we live in a "glue" directory */
 	if (!live_in_glue_dir(glue_dir, dev))
 		return;
 
 	mutex_lock(&gdp_mutex);
-	if (!kobject_has_children(glue_dir))
+	/**
+	 * There is a race condition between removing glue directory
+	 * and adding a new device under the glue directory.
+	 *
+	 * CPU1:                                         CPU2:
+	 *
+	 * device_add()
+	 *   get_device_parent()
+	 *     class_dir_create_and_add()
+	 *       kobject_add_internal()
+	 *         create_dir()    // create glue_dir
+	 *
+	 *                                               device_add()
+	 *                                                 get_device_parent()
+	 *                                                   kobject_get() // get glue_dir
+	 *
+	 * device_del()
+	 *   cleanup_glue_dir()
+	 *     kobject_del(glue_dir)
+	 *
+	 *                                               kobject_add()
+	 *                                                 kobject_add_internal()
+	 *                                                   create_dir() // in glue_dir
+	 *                                                     sysfs_create_dir_ns()
+	 *                                                       kernfs_create_dir_ns(sd)
+	 *
+	 *       sysfs_remove_dir() // glue_dir->sd=NULL
+	 *       sysfs_put()        // free glue_dir->sd
+	 *
+	 *                                                         // sd is freed
+	 *                                                         kernfs_new_node(sd)
+	 *                                                           kernfs_get(glue_dir)
+	 *                                                           kernfs_add_one()
+	 *                                                           kernfs_put()
+	 *
+	 * Before CPU1 remove last child device under glue dir, if CPU2 add
+	 * a new device under glue dir, the glue_dir kobject reference count
+	 * will be increase to 2 in kobject_get(k). And CPU2 has been called
+	 * kernfs_create_dir_ns(). Meanwhile, CPU1 call sysfs_remove_dir()
+	 * and sysfs_put(). This result in glue_dir->sd is freed.
+	 *
+	 * Then the CPU2 will see a stale "empty" but still potentially used
+	 * glue dir around in kernfs_new_node().
+	 *
+	 * In order to avoid this happening, we also should make sure that
+	 * kernfs_node for glue_dir is released in CPU1 only when refcount
+	 * for glue_dir kobj is 1.
+	 */
+	ref = atomic_read(&glue_dir->kref.refcount);
+	if (!kobject_has_children(glue_dir) && !--ref)
 		kobject_del(glue_dir);
 	kobject_put(glue_dir);
 	mutex_unlock(&gdp_mutex);
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index a04810837234..a12a163c6e6d 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3784,7 +3784,7 @@ static int compat_getdrvprm(int drive,
 	v.native_format = UDP->native_format;
 	mutex_unlock(&floppy_mutex);
 
-	if (copy_from_user(arg, &v, sizeof(struct compat_floppy_drive_params)))
+	if (copy_to_user(arg, &v, sizeof(struct compat_floppy_drive_params)))
 		return -EFAULT;
 	return 0;
 }
@@ -3820,7 +3820,7 @@ static int compat_getdrvstat(int drive, bool poll,
 	v.bufblocks = UDRS->bufblocks;
 	mutex_unlock(&floppy_mutex);
 
-	if (copy_from_user(arg, &v, sizeof(struct compat_floppy_drive_struct)))
+	if (copy_to_user(arg, &v, sizeof(struct compat_floppy_drive_struct)))
 		return -EFAULT;
 	return 0;
 Eintr:
diff --git a/drivers/clk/rockchip/clk-mmc-phase.c b/drivers/clk/rockchip/clk-mmc-phase.c
index b840e4ace623..2b289581d570 100644
--- a/drivers/clk/rockchip/clk-mmc-phase.c
+++ b/drivers/clk/rockchip/clk-mmc-phase.c
@@ -61,10 +61,8 @@ static int rockchip_mmc_get_phase(struct clk_hw *hw)
 	u32 delay_num = 0;
 
 	/* See the comment for rockchip_mmc_set_phase below */
-	if (!rate) {
-		pr_err("%s: invalid clk rate\n", __func__);
+	if (!rate)
 		return -EINVAL;
-	}
 
 	raw_value = readl(mmc_clock->reg) >> (mmc_clock->shift);
 
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index a000c2667392..014745271bb4 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -1426,6 +1426,18 @@ static void unmap_sg_talitos_ptr(struct device *dev, struct scatterlist *src,
 	}
 }
 
+static int ablkcipher_aes_setkey(struct crypto_ablkcipher *cipher,
+				  const u8 *key, unsigned int keylen)
+{
+	if (keylen == AES_KEYSIZE_128 || keylen == AES_KEYSIZE_192 ||
+	    keylen == AES_KEYSIZE_256)
+		return ablkcipher_setkey(cipher, key, keylen);
+
+	crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+
+	return -EINVAL;
+}
+
 static void common_nonsnoop_unmap(struct device *dev,
 				  struct talitos_edesc *edesc,
 				  struct ablkcipher_request *areq)
@@ -1629,6 +1641,14 @@ static int ablkcipher_encrypt(struct ablkcipher_request *areq)
 	struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
 	struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
 	struct talitos_edesc *edesc;
+	unsigned int blocksize =
+			crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(cipher));
+
+	if (!areq->nbytes)
+		return 0;
+
+	if (areq->nbytes % blocksize)
+		return -EINVAL;
 
 	/* allocate extended descriptor */
 	edesc = ablkcipher_edesc_alloc(areq, true);
@@ -1646,6 +1666,14 @@ static int ablkcipher_decrypt(struct ablkcipher_request *areq)
 	struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
 	struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
 	struct talitos_edesc *edesc;
+	unsigned int blocksize =
+			crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(cipher));
+
+	if (!areq->nbytes)
+		return 0;
+
+	if (areq->nbytes % blocksize)
+		return -EINVAL;
 
 	/* allocate extended descriptor */
 	edesc = ablkcipher_edesc_alloc(areq, false);
@@ -2379,6 +2407,7 @@ static struct talitos_alg_template driver_algs[] = {
 				.min_keysize = AES_MIN_KEY_SIZE,
 				.max_keysize = AES_MAX_KEY_SIZE,
 				.ivsize = AES_BLOCK_SIZE,
+				.setkey = ablkcipher_aes_setkey,
 			}
 		},
 		.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index 1dfc71c90123..57b6e6ca14a8 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -1199,8 +1199,10 @@ static int omap_dma_probe(struct platform_device *pdev)
 
 		rc = devm_request_irq(&pdev->dev, irq, omap_dma_irq,
 				      IRQF_SHARED, "omap-dma-engine", od);
-		if (rc)
+		if (rc) {
+			omap_dma_free(od);
 			return rc;
+		}
 	}
 
 	rc = dma_async_device_register(&od->ddev);
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 6a2df3297e77..691ad069444d 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -687,6 +687,9 @@ capi_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos
 	if (!cdev->ap.applid)
 		return -ENODEV;
 
+	if (count < CAPIMSG_BASELEN)
+		return -EINVAL;
+
 	skb = alloc_skb(count, GFP_USER);
 	if (!skb)
 		return -ENOMEM;
@@ -697,7 +700,8 @@ capi_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos
 	}
 	mlen = CAPIMSG_LEN(skb->data);
 	if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
-		if ((size_t)(mlen + CAPIMSG_DATALEN(skb->data)) != count) {
+		if (count < CAPI_DATA_B3_REQ_LEN ||
+		    (size_t)(mlen + CAPIMSG_DATALEN(skb->data)) != count) {
 			kfree_skb(skb);
 			return -EINVAL;
 		}
@@ -710,6 +714,10 @@ capi_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos
 	CAPIMSG_SETAPPID(skb->data, cdev->ap.applid);
 
 	if (CAPIMSG_CMD(skb->data) == CAPI_DISCONNECT_B3_RESP) {
+		if (count < CAPI_DISCONNECT_B3_RESP_LEN) {
+			kfree_skb(skb);
+			return -EINVAL;
+		}
 		mutex_lock(&cdev->lock);
 		capincci_free(cdev, CAPIMSG_NCCI(skb->data));
 		mutex_unlock(&cdev->lock);
diff --git a/drivers/media/usb/dvb-usb/technisat-usb2.c b/drivers/media/usb/dvb-usb/technisat-usb2.c
index 6c3c47722955..30a8c21ed736 100644
--- a/drivers/media/usb/dvb-usb/technisat-usb2.c
+++ b/drivers/media/usb/dvb-usb/technisat-usb2.c
@@ -594,9 +594,9 @@ static int technisat_usb2_frontend_attach(struct dvb_usb_adapter *a)
 
 static int technisat_usb2_get_ir(struct dvb_usb_device *d)
 {
-	u8 buf[62], *b;
-	int ret;
+	u8 buf[62];
 	struct ir_raw_event ev;
+	int i, ret;
 
 	buf[0] = GET_IR_DATA_VENDOR_REQUEST;
 	buf[1] = 0x08;
@@ -632,26 +632,25 @@ unlock:
 		return 0; /* no key pressed */
 
 	/* decoding */
-	b = buf+1;
 
 #if 0
 	deb_rc("RC: %d ", ret);
-	debug_dump(b, ret, deb_rc);
+	debug_dump(buf + 1, ret, deb_rc);
 #endif
 
 	ev.pulse = 0;
-	while (1) {
-		ev.pulse = !ev.pulse;
-		ev.duration = (*b * FIRMWARE_CLOCK_DIVISOR * FIRMWARE_CLOCK_TICK) / 1000;
-		ir_raw_event_store(d->rc_dev, &ev);
-
-		b++;
-		if (*b == 0xff) {
+	for (i = 1; i < ARRAY_SIZE(buf); i++) {
+		if (buf[i] == 0xff) {
 			ev.pulse = 0;
 			ev.duration = 888888*2;
 			ir_raw_event_store(d->rc_dev, &ev);
 			break;
 		}
+
+		ev.pulse = !ev.pulse;
+		ev.duration = (buf[i] * FIRMWARE_CLOCK_DIVISOR *
+			       FIRMWARE_CLOCK_TICK) / 1000;
+		ir_raw_event_store(d->rc_dev, &ev);
 	}
 
 	ir_raw_event_handle(d->rc_dev);
diff --git a/drivers/media/usb/tm6000/tm6000-dvb.c b/drivers/media/usb/tm6000/tm6000-dvb.c
index 4f317e2686e9..87401b18d85a 100644
--- a/drivers/media/usb/tm6000/tm6000-dvb.c
+++ b/drivers/media/usb/tm6000/tm6000-dvb.c
@@ -111,6 +111,7 @@ static void tm6000_urb_received(struct urb *urb)
 			printk(KERN_ERR "tm6000:  error %s\n", __func__);
 			kfree(urb->transfer_buffer);
 			usb_free_urb(urb);
+			dev->dvb->bulk_urb = NULL;
 		}
 	}
 }
@@ -143,6 +144,7 @@ static int tm6000_start_stream(struct tm6000_core *dev)
 	dvb->bulk_urb->transfer_buffer = kzalloc(size, GFP_KERNEL);
 	if (dvb->bulk_urb->transfer_buffer == NULL) {
 		usb_free_urb(dvb->bulk_urb);
+		dvb->bulk_urb = NULL;
 		printk(KERN_ERR "tm6000: couldn't allocate transfer buffer!\n");
 		return -ENOMEM;
 	}
@@ -170,6 +172,7 @@ static int tm6000_start_stream(struct tm6000_core *dev)
 
 		kfree(dvb->bulk_urb->transfer_buffer);
 		usb_free_urb(dvb->bulk_urb);
+		dvb->bulk_urb = NULL;
 		return ret;
 	}
 
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index dcd72b2a3715..8ba9eadc2079 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -4946,6 +4946,13 @@ static const struct dmi_system_id msi_blacklist[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "P6T"),
 		},
 	},
+	{
+		.ident = "ASUS P6X",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "P6X"),
+		},
+	},
 	{}
 };
 
diff --git a/drivers/net/ethernet/seeq/sgiseeq.c b/drivers/net/ethernet/seeq/sgiseeq.c
index ca7336605748..2e5f7bbd30bf 100644
--- a/drivers/net/ethernet/seeq/sgiseeq.c
+++ b/drivers/net/ethernet/seeq/sgiseeq.c
@@ -792,15 +792,16 @@ static int sgiseeq_probe(struct platform_device *pdev)
 		printk(KERN_ERR "Sgiseeq: Cannot register net device, "
 		       "aborting.\n");
 		err = -ENODEV;
-		goto err_out_free_page;
+		goto err_out_free_attrs;
 	}
 
 	printk(KERN_INFO "%s: %s %pM\n", dev->name, sgiseeqstr, dev->dev_addr);
 
 	return 0;
 
-err_out_free_page:
-	free_page((unsigned long) sp->srings);
+err_out_free_attrs:
+	dma_free_attrs(&pdev->dev, sizeof(*sp->srings), sp->srings,
+		       sp->srings_dma, DMA_ATTR_NON_CONSISTENT);
 err_out_free_dev:
 	free_netdev(dev);
 
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index fd9ff9eff237..2b7a3631b882 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -597,7 +597,8 @@ static void tun_detach_all(struct net_device *dev)
 		module_put(THIS_MODULE);
 }
 
-static int tun_attach(struct tun_struct *tun, struct file *file, bool skip_filter)
+static int tun_attach(struct tun_struct *tun, struct file *file,
+		      bool skip_filter, bool publish_tun)
 {
 	struct tun_file *tfile = file->private_data;
 	int err;
@@ -630,7 +631,8 @@ static int tun_attach(struct tun_struct *tun, struct file *file, bool skip_filte
 	}
 	tfile->queue_index = tun->numqueues;
 	tfile->socket.sk->sk_shutdown &= ~RCV_SHUTDOWN;
-	rcu_assign_pointer(tfile->tun, tun);
+	if (publish_tun)
+		rcu_assign_pointer(tfile->tun, tun);
 	rcu_assign_pointer(tun->tfiles[tun->numqueues], tfile);
 	tun->numqueues++;
 
@@ -1641,7 +1643,7 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
 		if (err < 0)
 			return err;
 
-		err = tun_attach(tun, file, ifr->ifr_flags & IFF_NOFILTER);
+		err = tun_attach(tun, file, ifr->ifr_flags & IFF_NOFILTER, true);
 		if (err < 0)
 			return err;
 
@@ -1722,13 +1724,17 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
 				       NETIF_F_HW_VLAN_STAG_TX);
 
 		INIT_LIST_HEAD(&tun->disabled);
-		err = tun_attach(tun, file, false);
+		err = tun_attach(tun, file, false, false);
 		if (err < 0)
 			goto err_free_flow;
 
 		err = register_netdevice(tun->dev);
 		if (err < 0)
 			goto err_detach;
+		/* free_netdev() won't check refcnt, to aovid race
+		 * with dev_put() we need publish tun after registration.
+		 */
+		rcu_assign_pointer(tfile->tun, tun);
 	}
 
 	netif_carrier_on(tun->dev);
@@ -1867,7 +1873,7 @@ static int tun_set_queue(struct file *file, struct ifreq *ifr)
 		ret = security_tun_dev_attach_queue(tun->security);
 		if (ret < 0)
 			goto unlock;
-		ret = tun_attach(tun, file, false);
+		ret = tun_attach(tun, file, false, true);
 	} else if (ifr->ifr_flags & IFF_DETACH_QUEUE) {
 		tun = rtnl_dereference(tfile->tun);
 		if (!tun || !(tun->flags & IFF_MULTI_QUEUE) || tfile->detached)
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index f71abe50ea6f..3707aab2423b 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -212,9 +212,16 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
 		goto bad_desc;
 	}
 skip:
-	if (	rndis &&
-		header.usb_cdc_acm_descriptor &&
-		header.usb_cdc_acm_descriptor->bmCapabilities) {
+	/* Communcation class functions with bmCapabilities are not
+	 * RNDIS.  But some Wireless class RNDIS functions use
+	 * bmCapabilities for their own purpose. The failsafe is
+	 * therefore applied only to Communication class RNDIS
+	 * functions.  The rndis test is redundant, but a cheap
+	 * optimization.
+	 */
+	if (rndis && is_rndis(&intf->cur_altsetting->desc) &&
+	    header.usb_cdc_acm_descriptor &&
+	    header.usb_cdc_acm_descriptor->bmCapabilities) {
 			dev_dbg(&intf->dev,
 				"ACM capabilities %02x, not really RNDIS?\n",
 				header.usb_cdc_acm_descriptor->bmCapabilities);
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 2d83689374bb..10dd307593e8 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -671,8 +671,11 @@ int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
 	ret = usb_control_msg(tp->udev, usb_rcvctrlpipe(tp->udev, 0),
 			      RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
 			      value, index, tmp, size, 500);
+	if (ret < 0)
+		memset(data, 0xff, size);
+	else
+		memcpy(data, tmp, size);
 
-	memcpy(data, tmp, size);
 	kfree(tmp);
 
 	return ret;
diff --git a/drivers/net/wireless/mwifiex/ie.c b/drivers/net/wireless/mwifiex/ie.c
index de8435709735..4255fb8dd58a 100644
--- a/drivers/net/wireless/mwifiex/ie.c
+++ b/drivers/net/wireless/mwifiex/ie.c
@@ -240,6 +240,9 @@ static int mwifiex_update_vs_ie(const u8 *ies, int ies_len,
 		}
 
 		vs_ie = (struct ieee_types_header *)vendor_ie;
+		if (le16_to_cpu(ie->ie_length) + vs_ie->len + 2 >
+			IEEE_MAX_IE_SIZE)
+			return -EINVAL;
 		memcpy(ie->ie_buffer + le16_to_cpu(ie->ie_length),
 		       vs_ie, vs_ie->len + 2);
 		le16_add_cpu(&ie->ie_length, vs_ie->len + 2);
diff --git a/drivers/net/wireless/mwifiex/uap_cmd.c b/drivers/net/wireless/mwifiex/uap_cmd.c
index 759a6ada5b0f..60bba1ca24e6 100644
--- a/drivers/net/wireless/mwifiex/uap_cmd.c
+++ b/drivers/net/wireless/mwifiex/uap_cmd.c
@@ -286,6 +286,8 @@ mwifiex_set_uap_rates(struct mwifiex_uap_bss_param *bss_cfg,
 
 	rate_ie = (void *)cfg80211_find_ie(WLAN_EID_SUPP_RATES, var_pos, len);
 	if (rate_ie) {
+		if (rate_ie->len > MWIFIEX_SUPPORTED_RATES)
+			return;
 		memcpy(bss_cfg->rates, rate_ie + 1, rate_ie->len);
 		rate_len = rate_ie->len;
 	}
@@ -293,8 +295,11 @@ mwifiex_set_uap_rates(struct mwifiex_uap_bss_param *bss_cfg,
 	rate_ie = (void *)cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES,
 					   params->beacon.tail,
 					   params->beacon.tail_len);
-	if (rate_ie)
+	if (rate_ie) {
+		if (rate_ie->len > MWIFIEX_SUPPORTED_RATES - rate_len)
+			return;
 		memcpy(bss_cfg->rates + rate_len, rate_ie + 1, rate_ie->len);
+	}
 
 	return;
 }
@@ -412,6 +417,8 @@ mwifiex_set_wmm_params(struct mwifiex_private *priv,
 					    params->beacon.tail_len);
 	if (vendor_ie) {
 		wmm_ie = (struct ieee_types_header *)vendor_ie;
+		if (*(vendor_ie + 1) > sizeof(struct mwifiex_types_wmm_info))
+			return;
 		memcpy(&bss_cfg->wmm_info, wmm_ie + 1,
 		       sizeof(bss_cfg->wmm_info));
 		priv->wmm_enabled = 1;
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 6f55ab4f7959..574c93a24180 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -893,7 +893,7 @@ static RING_IDX xennet_fill_frags(struct netfront_queue *queue,
 			__pskb_pull_tail(skb, pull_to - skb_headlen(skb));
 		}
 		if (unlikely(skb_shinfo(skb)->nr_frags >= MAX_SKB_FRAGS)) {
-			queue->rx.rsp_cons = ++cons;
+			queue->rx.rsp_cons = ++cons + skb_queue_len(list);
 			kfree_skb(nskb);
 			return ~0U;
 		}
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index fc46c8cf5fcd..3bd19de7df71 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -1275,7 +1275,6 @@ atmel_handle_transmit(struct uart_port *port, unsigned int pending)
 
 			atmel_port->hd_start_rx = false;
 			atmel_start_rx(port);
-			return;
 		}
 
 		tasklet_schedule(&atmel_port->tasklet);
diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c
index c894eca57e73..82e00ac6f7e3 100644
--- a/drivers/tty/serial/sprd_serial.c
+++ b/drivers/tty/serial/sprd_serial.c
@@ -240,7 +240,7 @@ static inline void sprd_rx(struct uart_port *port)
 
 		if (lsr & (SPRD_LSR_BI | SPRD_LSR_PE |
 			SPRD_LSR_FE | SPRD_LSR_OE))
-			if (handle_lsr_errors(port, &lsr, &flag))
+			if (handle_lsr_errors(port, &flag, &lsr))
 				continue;
 		if (uart_handle_sysrq_char(port, ch))
 			continue;
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index aef208585544..5abc4e5434ec 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -891,7 +891,7 @@ int usb_get_bos_descriptor(struct usb_device *dev)
 	struct usb_bos_descriptor *bos;
 	struct usb_dev_cap_header *cap;
 	struct usb_ssp_cap_descriptor *ssp_cap;
-	unsigned char *buffer;
+	unsigned char *buffer, *buffer0;
 	int length, total_len, num, i, ssac;
 	__u8 cap_type;
 	int ret;
@@ -936,10 +936,12 @@ int usb_get_bos_descriptor(struct usb_device *dev)
 			ret = -ENOMSG;
 		goto err;
 	}
+
+	buffer0 = buffer;
 	total_len -= length;
+	buffer += length;
 
 	for (i = 0; i < num; i++) {
-		buffer += length;
 		cap = (struct usb_dev_cap_header *)buffer;
 
 		if (total_len < sizeof(*cap) || total_len < cap->bLength) {
@@ -953,8 +955,6 @@ int usb_get_bos_descriptor(struct usb_device *dev)
 			break;
 		}
 
-		total_len -= length;
-
 		if (cap->bDescriptorType != USB_DT_DEVICE_CAPABILITY) {
 			dev_warn(ddev, "descriptor type invalid, skip\n");
 			continue;
@@ -989,7 +989,11 @@ int usb_get_bos_descriptor(struct usb_device *dev)
 		default:
 			break;
 		}
+
+		total_len -= length;
+		buffer += length;
 	}
+	dev->bos->desc->wTotalLength = cpu_to_le16(buffer - buffer0);
 
 	return 0;
 
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 57a46093656a..f9c3907bf159 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -5133,7 +5133,7 @@ process_leaf:
 			}
 
 			if (btrfs_inode_in_log(di_inode, trans->transid)) {
-				iput(di_inode);
+				btrfs_add_delayed_iput(di_inode);
 				continue;
 			}
 
@@ -5143,7 +5143,7 @@ process_leaf:
 			btrfs_release_path(path);
 			ret = btrfs_log_inode(trans, root, di_inode,
 					      log_mode, 0, LLONG_MAX, ctx);
-			iput(di_inode);
+			btrfs_add_delayed_iput(di_inode);
 			if (ret)
 				goto next_dir_inode;
 			if (ctx->log_new_dentries) {
@@ -5281,7 +5281,7 @@ static int btrfs_log_all_parents(struct btrfs_trans_handle *trans,
 
 			ret = btrfs_log_inode(trans, root, dir_inode,
 					      LOG_INODE_ALL, 0, LLONG_MAX, ctx);
-			iput(dir_inode);
+			btrfs_add_delayed_iput(dir_inode);
 			if (ret)
 				goto out;
 		}
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 9cb72fd40eff..63108343124a 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2466,6 +2466,7 @@ static int
 cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
 {
 	int rc = 0;
+	int is_domain = 0;
 	const char *delim, *payload;
 	char *desc;
 	ssize_t len;
@@ -2513,6 +2514,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
 			rc = PTR_ERR(key);
 			goto out_err;
 		}
+		is_domain = 1;
 	}
 
 	down_read(&key->sem);
@@ -2570,6 +2572,26 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
 		goto out_key_put;
 	}
 
+	/*
+	 * If we have a domain key then we must set the domainName in the
+	 * for the request.
+	 */
+	if (is_domain && ses->domainName) {
+		vol->domainname = kstrndup(ses->domainName,
+					   strlen(ses->domainName),
+					   GFP_KERNEL);
+		if (!vol->domainname) {
+			cifs_dbg(FYI, "Unable to allocate %zd bytes for "
+				 "domain\n", len);
+			rc = -ENOMEM;
+			kfree(vol->username);
+			vol->username = NULL;
+			kzfree(vol->password);
+			vol->password = NULL;
+			goto out_key_put;
+		}
+	}
+
 out_key_put:
 	up_read(&key->sem);
 	key_put(key);
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index d3e3761eacfa..c5e884585c23 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -73,13 +73,13 @@ nfs4_file_open(struct inode *inode, struct file *filp)
 	if (IS_ERR(inode)) {
 		err = PTR_ERR(inode);
 		switch (err) {
-		case -EPERM:
-		case -EACCES:
-		case -EDQUOT:
-		case -ENOSPC:
-		case -EROFS:
-			goto out_put_ctx;
 		default:
+			goto out_put_ctx;
+		case -ENOENT:
+		case -ESTALE:
+		case -EISDIR:
+		case -ENOTDIR:
+		case -ELOOP:
 			goto out_drop;
 		}
 	}
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 8a2077408ab0..af1bb7353792 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -593,7 +593,7 @@ static void nfs_pgio_rpcsetup(struct nfs_pgio_header *hdr,
 	}
 
 	hdr->res.fattr   = &hdr->fattr;
-	hdr->res.count   = count;
+	hdr->res.count   = 0;
 	hdr->res.eof     = 0;
 	hdr->res.verf    = &hdr->verf;
 	nfs_fattr_init(&hdr->fattr);
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index b417bbcd9704..b83e14ad13c4 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -588,7 +588,8 @@ static int nfs_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
 		/* Emulate the eof flag, which isn't normally needed in NFSv2
 		 * as it is guaranteed to always return the file attributes
 		 */
-		if (hdr->args.offset + hdr->res.count >= hdr->res.fattr->size)
+		if ((hdr->res.count == 0 && hdr->args.count > 0) ||
+		    hdr->args.offset + hdr->res.count >= hdr->res.fattr->size)
 			hdr->res.eof = 1;
 	}
 	return 0;
@@ -609,8 +610,10 @@ static int nfs_proc_pgio_rpc_prepare(struct rpc_task *task,
 
 static int nfs_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
 {
-	if (task->tk_status >= 0)
+	if (task->tk_status >= 0) {
+		hdr->res.count = hdr->args.count;
 		nfs_writeback_update_inode(hdr);
+	}
 	return 0;
 }
 
diff --git a/include/uapi/linux/isdn/capicmd.h b/include/uapi/linux/isdn/capicmd.h
index b58635f722da..ae1e1fba2e13 100644
--- a/include/uapi/linux/isdn/capicmd.h
+++ b/include/uapi/linux/isdn/capicmd.h
@@ -15,6 +15,7 @@
 #define CAPI_MSG_BASELEN		8
 #define CAPI_DATA_B3_REQ_LEN		(CAPI_MSG_BASELEN+4+4+2+2+2)
 #define CAPI_DATA_B3_RESP_LEN		(CAPI_MSG_BASELEN+4+2)
+#define CAPI_DISCONNECT_B3_RESP_LEN	(CAPI_MSG_BASELEN+4)
 
 /*----- CAPI commands -----*/
 #define CAPI_ALERT		    0x01
diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c
index b86886beee4f..867fb0ed4aa6 100644
--- a/kernel/irq/resend.c
+++ b/kernel/irq/resend.c
@@ -37,6 +37,8 @@ static void resend_irqs(unsigned long arg)
 		irq = find_first_bit(irqs_resend, nr_irqs);
 		clear_bit(irq, irqs_resend);
 		desc = irq_to_desc(irq);
+		if (!desc)
+			continue;
 		local_irq_disable();
 		desc->handle_irq(desc);
 		local_irq_enable();
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index cd8deea2d074..db6b65a5f811 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -256,7 +256,7 @@ static int nlmsg_populate_rtr_fill(struct sk_buff *skb,
 	struct nlmsghdr *nlh;
 	struct nlattr *nest;
 
-	nlh = nlmsg_put(skb, pid, seq, type, sizeof(*bpm), NLM_F_MULTI);
+	nlh = nlmsg_put(skb, pid, seq, type, sizeof(*bpm), 0);
 	if (!nlh)
 		return -EMSGSIZE;
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 152e1e6316e6..18a5154e2f25 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6837,6 +6837,8 @@ int register_netdevice(struct net_device *dev)
 	ret = notifier_to_errno(ret);
 	if (ret) {
 		rollback_registered(dev);
+		rcu_barrier();
+
 		dev->reg_state = NETREG_UNREGISTERED;
 	}
 	/*
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 30c5500b0899..b0677b265b48 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -225,7 +225,7 @@ static void tcp_ecn_accept_cwr(struct tcp_sock *tp, const struct sk_buff *skb)
 
 static void tcp_ecn_withdraw_cwr(struct tcp_sock *tp)
 {
-	tp->ecn_flags &= ~TCP_ECN_DEMAND_CWR;
+	tp->ecn_flags &= ~TCP_ECN_QUEUE_CWR;
 }
 
 static void __tcp_ecn_check_ce(struct sock *sk, const struct sk_buff *skb)
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index a830b68e63c9..c846cff26933 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -234,7 +234,7 @@ static int __net_init ping_v6_proc_init_net(struct net *net)
 	return ping_proc_register(net, &ping_v6_seq_afinfo);
 }
 
-static void __net_init ping_v6_proc_exit_net(struct net *net)
+static void __net_exit ping_v6_proc_exit_net(struct net *net)
 {
 	return ping_proc_unregister(net, &ping_v6_seq_afinfo);
 }
diff --git a/net/netfilter/nf_conntrack_ftp.c b/net/netfilter/nf_conntrack_ftp.c
index b666959f17c0..b7c13179fa40 100644
--- a/net/netfilter/nf_conntrack_ftp.c
+++ b/net/netfilter/nf_conntrack_ftp.c
@@ -334,7 +334,7 @@ static int find_pattern(const char *data, size_t dlen,
 		i++;
 	}
 
-	pr_debug("Skipped up to `%c'!\n", skip);
+	pr_debug("Skipped up to 0x%hhx delimiter!\n", skip);
 
 	*numoff = i;
 	*numlen = getnum(data + i, dlen - i, cmd, term, numoff);
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index aa4725038f94..eec6dc2d3152 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -671,7 +671,11 @@ static void qdisc_rcu_free(struct rcu_head *head)
 
 void qdisc_destroy(struct Qdisc *qdisc)
 {
-	const struct Qdisc_ops  *ops = qdisc->ops;
+	const struct Qdisc_ops *ops;
+
+	if (!qdisc)
+		return;
+	ops = qdisc->ops;
 
 	if (qdisc->flags & TCQ_F_BUILTIN ||
 	    !atomic_dec_and_test(&qdisc->refcnt))
diff --git a/net/sched/sch_hhf.c b/net/sched/sch_hhf.c
index aff2a1b46f7f..dc68dccc6b0c 100644
--- a/net/sched/sch_hhf.c
+++ b/net/sched/sch_hhf.c
@@ -552,7 +552,7 @@ static int hhf_change(struct Qdisc *sch, struct nlattr *opt)
 		new_hhf_non_hh_weight = nla_get_u32(tb[TCA_HHF_NON_HH_WEIGHT]);
 
 	non_hh_quantum = (u64)new_quantum * new_hhf_non_hh_weight;
-	if (non_hh_quantum > INT_MAX)
+	if (non_hh_quantum == 0 || non_hh_quantum > INT_MAX)
 		return -EINVAL;
 
 	sch_tree_lock(sch);
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 247d1888c386..07c54b212cd7 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1331,7 +1331,7 @@ static int __net_init sctp_ctrlsock_init(struct net *net)
 	return status;
 }
 
-static void __net_init sctp_ctrlsock_exit(struct net *net)
+static void __net_exit sctp_ctrlsock_exit(struct net *net)
 {
 	/* Free the control endpoint.  */
 	inet_ctl_sock_destroy(net->sctp.ctl_sock);
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index e5cd14307aa5..7c220e905168 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -505,7 +505,7 @@ static void sctp_do_8_2_transport_strike(sctp_cmd_seq_t *commands,
 	 */
 	if ((transport->state == SCTP_ACTIVE) &&
 	   (transport->error_count < transport->pathmaxrxt) &&
-	   (transport->error_count > asoc->pf_retrans)) {
+	   (transport->error_count > transport->pf_retrans)) {
 
 		sctp_assoc_control_transport(asoc, transport,
 					     SCTP_TRANSPORT_PF,
diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index c4c151bc000c..b57675f81ceb 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -284,7 +284,8 @@ static void tipc_publ_purge(struct net *net, struct publication *publ, u32 addr)
 		       publ->key);
 	}
 
-	kfree_rcu(p, rcu);
+	if (p)
+		kfree_rcu(p, rcu);
 }
 
 void tipc_publ_notify(struct net *net, struct list_head *nsub_list, u32 addr)
diff --git a/security/keys/request_key_auth.c b/security/keys/request_key_auth.c
index 8882b729924d..976deea0569e 100644
--- a/security/keys/request_key_auth.c
+++ b/security/keys/request_key_auth.c
@@ -71,6 +71,9 @@ static void request_key_auth_describe(const struct key *key,
 {
 	struct request_key_auth *rka = key->payload.data[0];
 
+	if (!rka)
+		return;
+
 	seq_puts(m, "key:");
 	seq_puts(m, key->description);
 	if (key_is_positive(key))
@@ -88,6 +91,9 @@ static long request_key_auth_read(const struct key *key,
 	size_t datalen;
 	long ret;
 
+	if (!rka)
+		return -EKEYREVOKED;
+
 	datalen = rka->callout_len;
 	ret = datalen;
 
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 532e7bf06868..58cf16188722 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -3014,7 +3014,7 @@ int initialize_counters(int cpu_id)
 
 void allocate_output_buffer()
 {
-	output_buffer = calloc(1, (1 + topo.num_cpus) * 1024);
+	output_buffer = calloc(1, (1 + topo.num_cpus) * 2048);
 	outp = output_buffer;
 	if (outp == NULL)
 		err(-1, "calloc output buffer");
diff --git a/virt/kvm/coalesced_mmio.c b/virt/kvm/coalesced_mmio.c
index 571c1ce37d15..5c1efb869df2 100644
--- a/virt/kvm/coalesced_mmio.c
+++ b/virt/kvm/coalesced_mmio.c
@@ -39,7 +39,7 @@ static int coalesced_mmio_in_range(struct kvm_coalesced_mmio_dev *dev,
 	return 1;
 }
 
-static int coalesced_mmio_has_room(struct kvm_coalesced_mmio_dev *dev)
+static int coalesced_mmio_has_room(struct kvm_coalesced_mmio_dev *dev, u32 last)
 {
 	struct kvm_coalesced_mmio_ring *ring;
 	unsigned avail;
@@ -51,7 +51,7 @@ static int coalesced_mmio_has_room(struct kvm_coalesced_mmio_dev *dev)
 	 * there is always one unused entry in the buffer
 	 */
 	ring = dev->kvm->coalesced_mmio_ring;
-	avail = (ring->first - ring->last - 1) % KVM_COALESCED_MMIO_MAX;
+	avail = (ring->first - last - 1) % KVM_COALESCED_MMIO_MAX;
 	if (avail == 0) {
 		/* full */
 		return 0;
@@ -66,24 +66,27 @@ static int coalesced_mmio_write(struct kvm_vcpu *vcpu,
 {
 	struct kvm_coalesced_mmio_dev *dev = to_mmio(this);
 	struct kvm_coalesced_mmio_ring *ring = dev->kvm->coalesced_mmio_ring;
+	__u32 insert;
 
 	if (!coalesced_mmio_in_range(dev, addr, len))
 		return -EOPNOTSUPP;
 
 	spin_lock(&dev->kvm->ring_lock);
 
-	if (!coalesced_mmio_has_room(dev)) {
+	insert = READ_ONCE(ring->last);
+	if (!coalesced_mmio_has_room(dev, insert) ||
+	    insert >= KVM_COALESCED_MMIO_MAX) {
 		spin_unlock(&dev->kvm->ring_lock);
 		return -EOPNOTSUPP;
 	}
 
 	/* copy data in first free entry of the ring */
 
-	ring->coalesced_mmio[ring->last].phys_addr = addr;
-	ring->coalesced_mmio[ring->last].len = len;
-	memcpy(ring->coalesced_mmio[ring->last].data, val, len);
+	ring->coalesced_mmio[insert].phys_addr = addr;
+	ring->coalesced_mmio[insert].len = len;
+	memcpy(ring->coalesced_mmio[insert].data, val, len);
 	smp_wmb();
-	ring->last = (ring->last + 1) % KVM_COALESCED_MMIO_MAX;
+	ring->last = (insert + 1) % KVM_COALESCED_MMIO_MAX;
 	spin_unlock(&dev->kvm->ring_lock);
 	return 0;
 }