Merge remote-tracking branch 'google/common/android-4.4-p' into lineage-18.1-caf-msm8998

* google/common/android-4.4-p:
  Linux 4.4.302
  Input: i8042 - Fix misplaced backport of "add ASUS Zenbook Flip to noselftest list"
  KVM: x86: Fix misplaced backport of "work around leak of uninitialized stack contents"
  Revert "tc358743: fix register i2c_rd/wr function fix"
  Revert "drm/radeon/ci: disable mclk switching for high refresh rates (v2)"
  Bluetooth: MGMT: Fix misplaced BT_HS check
  ipv4: tcp: send zero IPID in SYNACK messages
  ipv4: raw: lock the socket in raw_bind()
  hwmon: (lm90) Reduce maximum conversion rate for G781
  drm/msm: Fix wrong size calculation
  net-procfs: show net devices bound packet types
  ipv4: avoid using shared IP generator for connected sockets
  net: fix information leakage in /proc/net/ptype
  ipv6_tunnel: Rate limit warning messages
  scsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put()
  USB: core: Fix hang in usb_kill_urb by adding memory barriers
  usb-storage: Add unusual-devs entry for VL817 USB-SATA bridge
  tty: Add support for Brainboxes UC cards.
  tty: n_gsm: fix SW flow control encoding/handling
  serial: stm32: fix software flow control transfer
  PM: wakeup: simplify the output logic of pm_show_wakelocks()
  udf: Fix NULL ptr deref when converting from inline format
  udf: Restore i_lenAlloc when inode expansion fails
  scsi: zfcp: Fix failed recovery on gone remote port with non-NPIV FCP devices
  s390/hypfs: include z/VM guests with access control group set
  Bluetooth: refactor malicious adv data check
  can: bcm: fix UAF of bcm op
  Linux 4.4.301
  drm/i915: Flush TLBs before releasing backing store
  Linux 4.4.300
  lib82596: Fix IRQ check in sni_82596_probe
  bcmgenet: add WOL IRQ check
  net_sched: restore "mpu xxx" handling
  dmaengine: at_xdmac: Fix at_xdmac_lld struct definition
  dmaengine: at_xdmac: Fix lld view setting
  dmaengine: at_xdmac: Print debug message after realeasing the lock
  dmaengine: at_xdmac: Don't start transactions at tx_submit level
  netns: add schedule point in ops_exit_list()
  net: axienet: fix number of TX ring slots for available check
  net: axienet: Wait for PhyRstCmplt after core reset
  af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress
  parisc: pdc_stable: Fix memory leak in pdcs_register_pathentries
  net/fsl: xgmac_mdio: Fix incorrect iounmap when removing module
  powerpc/fsl/dts: Enable WA for erratum A-009885 on fman3l MDIO buses
  ext4: don't use the orphan list when migrating an inode
  ext4: Fix BUG_ON in ext4_bread when write quota data
  ext4: set csum seed in tmp inode while migrating to extents
  ubifs: Error path in ubifs_remount_rw() seems to wrongly free write buffers
  power: bq25890: Enable continuous conversion for ADC at charging
  scsi: sr: Don't use GFP_DMA
  MIPS: Octeon: Fix build errors using clang
  i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters
  ALSA: seq: Set upper limit of processed events
  w1: Misuse of get_user()/put_user() reported by sparse
  i2c: mpc: Correct I2C reset procedure
  powerpc/smp: Move setup_profiling_timer() under CONFIG_PROFILING
  i2c: i801: Don't silently correct invalid transfer size
  powerpc/btext: add missing of_node_put
  powerpc/cell: add missing of_node_put
  powerpc/powernv: add missing of_node_put
  powerpc/6xx: add missing of_node_put
  parisc: Avoid calling faulthandler_disabled() twice
  serial: core: Keep mctrl register state and cached copy in sync
  serial: pl010: Drop CR register reset on set_termios
  dm space map common: add bounds check to sm_ll_lookup_bitmap()
  dm btree: add a defensive bounds check to insert_at()
  net: mdio: Demote probed message to debug print
  btrfs: remove BUG_ON(!eie) in find_parent_nodes
  btrfs: remove BUG_ON() in find_parent_nodes()
  ACPICA: Executer: Fix the REFCLASS_REFOF case in acpi_ex_opcode_1A_0T_1R()
  ACPICA: Utilities: Avoid deleting the same object twice in a row
  um: registers: Rename function names to avoid conflicts and build problems
  ath9k: Fix out-of-bound memcpy in ath9k_hif_usb_rx_stream
  usb: hub: Add delay for SuperSpeed hub resume to let links transit to U0
  media: saa7146: hexium_gemini: Fix a NULL pointer dereference in hexium_attach()
  media: igorplugusb: receiver overflow should be reported
  net: bonding: debug: avoid printing debug logs when bond is not notifying peers
  iwlwifi: mvm: synchronize with FW after multicast commands
  media: m920x: don't use stack on USB reads
  media: saa7146: hexium_orion: Fix a NULL pointer dereference in hexium_attach()
  floppy: Add max size check for user space request
  mwifiex: Fix skb_over_panic in mwifiex_usb_recv()
  HSI: core: Fix return freed object in hsi_new_client
  media: b2c2: Add missing check in flexcop_pci_isr:
  usb: gadget: f_fs: Use stream_open() for endpoint files
  ar5523: Fix null-ptr-deref with unexpected WDCMSG_TARGET_START reply
  fs: dlm: filter user dlm messages for kernel locks
  Bluetooth: Fix debugfs entry leak in hci_register_dev()
  RDMA/cxgb4: Set queue pair state when being queried
  mips: bcm63xx: add support for clk_set_parent()
  mips: lantiq: add support for clk_set_parent()
  misc: lattice-ecp3-config: Fix task hung when firmware load failed
  ASoC: samsung: idma: Check of ioremap return value
  dmaengine: pxa/mmp: stop referencing config->slave_id
  RDMA/core: Let ib_find_gid() continue search even after empty entry
  char/mwave: Adjust io port register size
  ALSA: oss: fix compile error when OSS_DEBUG is enabled
  powerpc/prom_init: Fix improper check of prom_getprop()
  ALSA: hda: Add missing rwsem around snd_ctl_remove() calls
  ALSA: PCM: Add missing rwsem around snd_ctl_remove() calls
  ALSA: jack: Add missing rwsem around snd_ctl_remove() calls
  ext4: avoid trim error on fs with small groups
  net: mcs7830: handle usb read errors properly
  pcmcia: fix setting of kthread task states
  can: xilinx_can: xcan_probe(): check for error irq
  can: softing: softing_startstop(): fix set but not used variable warning
  spi: spi-meson-spifc: Add missing pm_runtime_disable() in meson_spifc_probe
  ppp: ensure minimum packet size in ppp_write()
  pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in nonstatic_find_mem_region()
  pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in __nonstatic_find_io_region()
  usb: ftdi-elan: fix memory leak on device disconnect
  media: msi001: fix possible null-ptr-deref in msi001_probe()
  media: saa7146: mxb: Fix a NULL pointer dereference in mxb_attach()
  media: dib8000: Fix a memleak in dib8000_init()
  floppy: Fix hang in watchdog when disk is ejected
  serial: amba-pl011: do not request memory region twice
  drm/amdgpu: Fix a NULL pointer dereference in amdgpu_connector_lcd_native_mode()
  arm64: dts: qcom: msm8916: fix MMC controller aliases
  netfilter: bridge: add support for pppoe filtering
  tty: serial: atmel: Call dma_async_issue_pending()
  tty: serial: atmel: Check return code of dmaengine_submit()
  crypto: qce - fix uaf on qce_ahash_register_one
  Bluetooth: stop proccessing malicious adv data
  Bluetooth: cmtp: fix possible panic when cmtp_init_sockets() fails
  PCI: Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller
  can: softing_cs: softingcs_probe(): fix memleak on registration failure
  media: stk1160: fix control-message timeouts
  media: pvrusb2: fix control-message timeouts
  media: dib0700: fix undefined behavior in tuner shutdown
  media: em28xx: fix control-message timeouts
  media: mceusb: fix control-message timeouts
  rtc: cmos: take rtc_lock while reading from CMOS
  nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind()
  HID: uhid: Fix worker destroying device without any protection
  rtlwifi: rtl8192cu: Fix WARNING when calling local_irq_restore() with interrupts enabled
  media: uvcvideo: fix division by zero at stream start
  drm/i915: Avoid bitwise vs logical OR warning in snb_wm_latency_quirk()
  can: gs_usb: gs_can_start_xmit(): zero-initialize hf->{flags,reserved}
  can: gs_usb: fix use of uninitialized variable, detach device on reception of invalid USB data
  mfd: intel-lpss: Fix too early PM enablement in the ACPI ->probe()
  USB: Fix "slab-out-of-bounds Write" bug in usb_hcd_poll_rh_status
  USB: core: Fix bug in resuming hub's handling of wakeup requests
  Bluetooth: bfusb: fix division by zero in send path
  Linux 4.4.299
  power: reset: ltc2952: Fix use of floating point literals
  mISDN: change function names to avoid conflicts
  net: udp: fix alignment problem in udp4_seq_show()
  ip6_vti: initialize __ip6_tnl_parm struct in vti6_siocdevprivate
  scsi: libiscsi: Fix UAF in iscsi_conn_get_param()/iscsi_conn_teardown()
  phonet: refcount leak in pep_sock_accep
  rndis_host: support Hytera digital radios
  xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate
  sch_qfq: prevent shift-out-of-bounds in qfq_init_qdisc
  i40e: Fix incorrect netdev's real number of RX/TX queues
  mac80211: initialize variable have_higher_than_11mbit
  ieee802154: atusb: fix uninit value in atusb_set_extended_addr
  Bluetooth: btusb: Apply QCA Rome patches for some ATH3012 models
  bpf, test: fix ld_abs + vlan push/pop stress test
  Linux 4.4.298
  net: fix use-after-free in tw_timer_handler
  Input: spaceball - fix parsing of movement data packets
  Input: appletouch - initialize work before device registration
  scsi: vmw_pvscsi: Set residual data length conditionally
  usb: gadget: f_fs: Clear ffs_eventfd in ffs_data_clear.
  xhci: Fresco FL1100 controller should not have BROKEN_MSI quirk set.
  uapi: fix linux/nfc.h userspace compilation errors
  nfc: uapi: use kernel size_t to fix user-space builds
  selinux: initialize proto variable in selinux_ip_postroute_compat()
  recordmcount.pl: fix typo in s390 mcount regex
  platform/x86: apple-gmux: use resource_size() with res
  Linux 4.4.297
  phonet/pep: refuse to enable an unbound pipe
  hamradio: improve the incomplete fix to avoid NPD
  hamradio: defer ax25 kfree after unregister_netdev
  ax25: NPD bug when detaching AX25 device
  xen/blkfront: fix bug in backported patch
  ARM: 9169/1: entry: fix Thumb2 bug in iWMMXt exception handling
  ALSA: drivers: opl3: Fix incorrect use of vp->state
  ALSA: jack: Check the return value of kstrdup()
  hwmon: (lm90) Fix usage of CONFIG2 register in detect function
  drivers: net: smc911x: Check for error irq
  bonding: fix ad_actor_system option setting to default
  qlcnic: potential dereference null pointer of rx_queue->page_ring
  IB/qib: Fix memory leak in qib_user_sdma_queue_pkts()
  HID: holtek: fix mouse probing
  can: kvaser_usb: get CAN clock frequency from device
  net: usb: lan78xx: add Allied Telesis AT29M2-AF

 Conflicts:
	drivers/usb/gadget/function/f_fs.c

Change-Id: Iabc390c3c9160c7a2864ffe1125d73412ffdb31d

19 files changed, 49 insertions, 27 deletions

diff --git a/arch/arm/boot/dts/qcom/msm8916.dtsi b/arch/arm/boot/dts/qcom/msm8916.dtsi
index 8d184ff19642..5cac11e6ba4b 100644
--- a/arch/arm/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm/boot/dts/qcom/msm8916.dtsi
@@ -25,8 +25,8 @@
 	#size-cells = <2>;
 
 	aliases {
-		sdhc1 = &sdhc_1; /* SDC1 eMMC slot */
-		sdhc2 = &sdhc_2; /* SDC2 SD card slot */
+		mmc0 = &sdhc_1; /* SDC1 eMMC slot */
+		mmc1 = &sdhc_2; /* SDC2 SD card slot */
 	};
 
 	chosen { };
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 3ce377f7251f..618ceb6fe674 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -625,11 +625,9 @@ call_fpe:
 	tstne	r0, #0x04000000			@ bit 26 set on both ARM and Thumb-2
 	reteq	lr
 	and	r8, r0, #0x00000f00		@ mask out CP number
- THUMB(	lsr	r8, r8, #8		)
 	mov	r7, #1
-	add	r6, r10, #TI_USED_CP
- ARM(	strb	r7, [r6, r8, lsr #8]	)	@ set appropriate used_cp[]
- THUMB(	strb	r7, [r6, r8]		)	@ set appropriate used_cp[]
+	add	r6, r10, r8, lsr #8		@ add used_cp[] array offset first
+	strb	r7, [r6, #TI_USED_CP]		@ set appropriate used_cp[]
 #ifdef CONFIG_IWMMXT
 	@ Test if we need to give access to iWMMXt coprocessors
 	ldr	r5, [r10, #TI_FLAGS]
@@ -638,7 +636,7 @@ call_fpe:
 	bcs	iwmmxt_task_enable
 #endif
  ARM(	add	pc, pc, r8, lsr #6	)
- THUMB(	lsl	r8, r8, #2		)
+ THUMB(	lsr	r8, r8, #6		)
  THUMB(	add	pc, r8			)
 	nop
 
diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c
index ef268c9aac80..fe90c1c86a60 100644
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -339,6 +339,12 @@ struct clk *clk_get_parent(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_get_parent);
 
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
 unsigned long clk_get_rate(struct clk *clk)
 {
 	return clk->rate;
diff --git a/arch/mips/include/asm/octeon/cvmx-bootinfo.h b/arch/mips/include/asm/octeon/cvmx-bootinfo.h
index d92cf59bdae6..bc414657601c 100644
--- a/arch/mips/include/asm/octeon/cvmx-bootinfo.h
+++ b/arch/mips/include/asm/octeon/cvmx-bootinfo.h
@@ -303,7 +303,7 @@ enum cvmx_chip_types_enum {
 
 /* Functions to return string based on type */
 #define ENUM_BRD_TYPE_CASE(x) \
-	case x: return(#x + 16);	/* Skip CVMX_BOARD_TYPE_ */
+	case x: return (&#x[16]);	/* Skip CVMX_BOARD_TYPE_ */
 static inline const char *cvmx_board_type_to_string(enum
 						    cvmx_board_types_enum type)
 {
@@ -392,7 +392,7 @@ static inline const char *cvmx_board_type_to_string(enum
 }
 
 #define ENUM_CHIP_TYPE_CASE(x) \
-	case x: return(#x + 15);	/* Skip CVMX_CHIP_TYPE */
+	case x: return (&#x[15]);	/* Skip CVMX_CHIP_TYPE */
 static inline const char *cvmx_chip_type_to_string(enum
 						   cvmx_chip_types_enum type)
 {
diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
index a0706fd4ce0a..80bdcb26ef8a 100644
--- a/arch/mips/lantiq/clk.c
+++ b/arch/mips/lantiq/clk.c
@@ -165,6 +165,12 @@ struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec)
 	return NULL;
 }
 
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
 static inline u32 get_counter_resolution(void)
 {
 	u32 res;
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 6f61a17e2485..55e7ba06511d 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -796,7 +796,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 	     * unless pagefault_disable() was called before.
 	     */
 
-	    if (fault_space == 0 && !faulthandler_disabled())
+	    if (faulthandler_disabled() || fault_space == 0)
 	    {
 		/* Clean up and return if in exception table. */
 		if (fixup_exception(regs))
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi
index 7f60b6060176..39b1c1fa0c81 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi
@@ -78,6 +78,7 @@ fman0: fman@400000 {
 		#size-cells = <0>;
 		compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
 		reg = <0xfc000 0x1000>;
+		fsl,erratum-a009885;
 	};
 
 	xmdio0: mdio@fd000 {
@@ -85,6 +86,7 @@ fman0: fman@400000 {
 		#size-cells = <0>;
 		compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
 		reg = <0xfd000 0x1000>;
+		fsl,erratum-a009885;
 	};
 
 	ptp_timer0: ptp-timer@fe000 {
diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index 41c011cb6070..8d05ef26dea9 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -257,8 +257,10 @@ int __init btext_find_display(int allow_nonstdout)
 			rc = btext_initialize(np);
 			printk("result: %d\n", rc);
 		}
-		if (rc == 0)
+		if (rc == 0) {
+			of_node_put(np);
 			break;
+		}
 	}
 	return rc;
 }
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 3139533640fc..204e44cc896e 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -2526,7 +2526,7 @@ static void __init fixup_device_tree_efika_add_phy(void)
 
 	/* Check if the phy-handle property exists - bail if it does */
 	rv = prom_getprop(node, "phy-handle", prop, sizeof(prop));
-	if (!rv)
+	if (rv <= 0)
 		return;
 
 	/*
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index ec9ec2058d2d..19ba60ab1807 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -732,10 +732,12 @@ void start_secondary(void *unused)
 	BUG();
 }
 
+#ifdef CONFIG_PROFILING
 int setup_profiling_timer(unsigned int multiplier)
 {
 	return 0;
 }
+#endif
 
 #ifdef CONFIG_SCHED_SMT
 /* cpumask of CPUs with asymetric SMT dependancy */
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 14a582b21274..4edceff5791a 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -1107,6 +1107,7 @@ static int __init cell_iommu_fixed_mapping_init(void)
 			if (hbase < dbase || (hend > (dbase + dsize))) {
 				pr_debug("iommu: hash window doesn't fit in"
 					 "real DMA window\n");
+				of_node_put(np);
 				return -1;
 			}
 		}
diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
index 9485f1024d46..b3bcdce89c3b 100644
--- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
@@ -220,6 +220,7 @@ void hlwd_pic_probe(void)
 			irq_set_chained_handler(cascade_virq,
 						hlwd_pic_irq_cascade);
 			hlwd_irq_host = host;
+			of_node_put(np);
 			break;
 		}
 	}
diff --git a/arch/powerpc/platforms/powernv/opal-lpc.c b/arch/powerpc/platforms/powernv/opal-lpc.c
index e4169d68cb32..d28c4a9269c3 100644
--- a/arch/powerpc/platforms/powernv/opal-lpc.c
+++ b/arch/powerpc/platforms/powernv/opal-lpc.c
@@ -401,6 +401,7 @@ void opal_lpc_init(void)
 		if (!of_get_property(np, "primary", NULL))
 			continue;
 		opal_lpc_chip_id = of_get_ibm_chip_id(np);
+		of_node_put(np);
 		break;
 	}
 	if (opal_lpc_chip_id < 0)
diff --git a/arch/s390/hypfs/hypfs_vm.c b/arch/s390/hypfs/hypfs_vm.c
index 44feac38ccfc..7f53e40597f9 100644
--- a/arch/s390/hypfs/hypfs_vm.c
+++ b/arch/s390/hypfs/hypfs_vm.c
@@ -19,6 +19,7 @@
 
 static char local_guest[] = "        ";
 static char all_guests[] = "*       ";
+static char *all_groups = all_guests;
 static char *guest_query;
 
 struct diag2fc_data {
@@ -61,10 +62,11 @@ static int diag2fc(int size, char* query, void *addr)
 
 	memcpy(parm_list.userid, query, NAME_LEN);
 	ASCEBC(parm_list.userid, NAME_LEN);
-	parm_list.addr = (unsigned long) addr ;
+	memcpy(parm_list.aci_grp, all_groups, NAME_LEN);
+	ASCEBC(parm_list.aci_grp, NAME_LEN);
+	parm_list.addr = (unsigned long)addr;
 	parm_list.size = size;
 	parm_list.fmt = 0x02;
-	memset(parm_list.aci_grp, 0x40, NAME_LEN);
 	rc = -1;
 
 	diag_stat_inc(DIAG_STAT_X2FC);
diff --git a/arch/um/include/shared/registers.h b/arch/um/include/shared/registers.h
index f5b76355ad71..089f979e112e 100644
--- a/arch/um/include/shared/registers.h
+++ b/arch/um/include/shared/registers.h
@@ -14,8 +14,8 @@ extern int restore_fp_registers(int pid, unsigned long *fp_regs);
 extern int save_fpx_registers(int pid, unsigned long *fp_regs);
 extern int restore_fpx_registers(int pid, unsigned long *fp_regs);
 extern int save_registers(int pid, struct uml_pt_regs *regs);
-extern int restore_registers(int pid, struct uml_pt_regs *regs);
-extern int init_registers(int pid);
+extern int restore_pid_registers(int pid, struct uml_pt_regs *regs);
+extern int init_pid_registers(int pid);
 extern void get_safe_registers(unsigned long *regs, unsigned long *fp_regs);
 extern unsigned long get_thread_reg(int reg, jmp_buf *buf);
 extern int get_fp_registers(int pid, unsigned long *regs);
diff --git a/arch/um/os-Linux/registers.c b/arch/um/os-Linux/registers.c
index 2ff8d4fe83c4..34a5963bd7ef 100644
--- a/arch/um/os-Linux/registers.c
+++ b/arch/um/os-Linux/registers.c
@@ -21,7 +21,7 @@ int save_registers(int pid, struct uml_pt_regs *regs)
 	return 0;
 }
 
-int restore_registers(int pid, struct uml_pt_regs *regs)
+int restore_pid_registers(int pid, struct uml_pt_regs *regs)
 {
 	int err;
 
@@ -36,7 +36,7 @@ int restore_registers(int pid, struct uml_pt_regs *regs)
 static unsigned long exec_regs[MAX_REG_NR];
 static unsigned long exec_fp_regs[FP_SIZE];
 
-int init_registers(int pid)
+int init_pid_registers(int pid)
 {
 	int err;
 
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 22a358ef1b0c..dc06933ba63d 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -334,7 +334,7 @@ void __init os_early_checks(void)
 	check_tmpexec();
 
 	pid = start_ptraced_child();
-	if (init_registers(pid))
+	if (init_pid_registers(pid))
 		fatal("Failed to initialize default registers");
 	stop_ptraced_child(pid, 1, 1);
 }
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8dce61ca934b..910100257df9 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4417,13 +4417,6 @@ 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);
 }
@@ -4431,6 +4424,13 @@ static int emulator_write_std(struct x86_emulate_ctxt *ctxt, gva_t addr, void *v
 int kvm_write_guest_virt_system(struct kvm_vcpu *vcpu, gva_t addr, void *val,
 				unsigned int bytes, struct x86_exception *exception)
 {
+	/*
+	 * 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,
 					   PFERR_WRITE_MASK, exception);
 }
diff --git a/arch/x86/um/syscalls_64.c b/arch/x86/um/syscalls_64.c
index e6552275320b..40ecacb2c54b 100644
--- a/arch/x86/um/syscalls_64.c
+++ b/arch/x86/um/syscalls_64.c
@@ -9,6 +9,7 @@
 #include <linux/uaccess.h>
 #include <asm/prctl.h> /* XXX This should get the constants from libc */
 #include <os.h>
+#include <registers.h>
 
 long arch_prctl(struct task_struct *task, int code, unsigned long __user *addr)
 {
@@ -32,7 +33,7 @@ long arch_prctl(struct task_struct *task, int code, unsigned long __user *addr)
 	switch (code) {
 	case ARCH_SET_FS:
 	case ARCH_SET_GS:
-		ret = restore_registers(pid, &current->thread.regs.regs);
+		ret = restore_pid_registers(pid, &current->thread.regs.regs);
 		if (ret)
 			return ret;
 		break;