perf events: repair incorrect use of copy_from_user

This makes the perf_event_period() return 0 instead of
-EFAULT on success.

Signed-off-by: John Blackwood<john.blackwood@ccur.com>
Signed-off-by: Joe Korty <joe.korty@ccur.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20100928220311.GA18145@tsunami.ccur.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  kbuild: fix oldnoconfig to do the right thing
  kconfig: Temporarily disable dependency warnings
  kconfig: delay symbol direct dependency initialization

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86:
  IPS driver: Fix limit clamping when reducing CPU power
  [PATCH 2/2] IPS driver: disable CPU turbo
  IPS driver: apply BIOS provided CPU limit if different from default
  intel_ips -- ensure we do not enable gpu turbo mode without driver linkage
  intel_ips: Print MCP limit exceeded values.
  IPS driver: verify BIOS provided limits
  IPS driver: don't toggle CPU turbo on unsupported CPUs
  NULL pointer might be used in ips_monitor()
  Release symbol on error-handling path of ips_get_i915_syms()
  old_cpu_power is wrongly divided by 65535 in ips_monitor()
  seqno mask of THM_ITV register is 16bit

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wacom - fix pressure in Cintiq 21UX2

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Add another HP DV6 quirk
  OSS: soundcard: locking bug in sound_ioctl()
  ASoC: Update links for Wolfson MAINTAINERS entry
  ASoC: Add Dimitris Papastamos to Wolfson maintainers
  ASoC: Add Jassi Brar as Samsung maintainer

BugLink: https://bugs.launchpad.net/bugs/653420

Add another HP DV6 notebook (103c:363e) to use STAC_HP_DV5.
Signed-off-by: Luke Yelavich <luke.yelavich@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

We shouldn't return directly here because we're still holding the
&soundcard_mutex.

This bug goes all the way back to the start of git.  It's strange that
no one has complained about it as a runtime bug.

CC: stable@kernel.org
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Currently the pressure range in Cintiq 21UX2 is limited to half of the
supported. This patch fixes the problem.
Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Acked-by: Ping Cheng <pingc@wacom.com>
CC: stable@kernel.org
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

Commit 861b4ea4 broke oldnoconfig when removed the oldnoconfig checks on
                       if (input_mode == nonint_oldconfig ||
                           input_mode == oldnoconfig) {
                               if (input_mode == nonint_oldconfig &&
                                   sym->name &&
                                    !sym_is_choice_value(sym)) {
to avoid oldnoconfig chugging through the else stanza.

Fix that to restore expected behaviour (which I've confirmed in the
Fedora kernel build that the configs end up looking the same.)
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>

After fixing a use-after-free bug in kconfig, a 'make defconfig' or
'make allmodconfig' fills the screen with warnings that were not
detected before. Given that we are close to the release now, disable the
warnings temporarily and deal with them after 2.6.36.
Signed-off-by: Michal Marek <mmarek@suse.cz>

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits)
  net: clear heap allocation for ETHTOOL_GRXCLSRLALL
  isdn: strcpy() => strlcpy()
  Revert "mac80211: use netif_receive_skb in ieee80211_tx_status callpath"
  mac80211: delete AddBA response timer
  ath9k_hw: fix regression in ANI listen time calculation
  caif: fix two caif_connect() bugs
  bonding: fix WARN_ON when writing to bond_master sysfs file
  skge: add quirk to limit DMA
  MAINTAINERS: update Intel LAN Ethernet info
  e1000e.txt: Add e1000e documentation
  e1000.txt: Update e1000 documentation
  ixgbevf.txt: Update ixgbevf documentation
  cls_u32: signedness bug
  Bluetooth: Disallow to change L2CAP_OPTIONS values when connected
  sctp: Fix out-of-bounds reading in sctp_asoc_get_hmac()
  sctp: prevent reading out-of-bounds memory
  ipv4: correct IGMP behavior on v3 query during v2-compatibility mode
  netdev: Depend on INET before selecting INET_LRO
  Revert "ipv4: Make INET_LRO a bool instead of tristate."
  net: Fix the condition passed to sk_wait_event()
  ...

* 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6:
  intel_idle: enable Atom C6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI: add DMI to disable AML Vista compatibility on MSI GX723 Notebook
  ACPI: Handle ACPI0007 Device in acpi_early_set_pdc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: update issue_seq on cap grant
  ceph: send cap release message early on failed revoke.
  ceph: Update max_len with minimum required size
  ceph: Fix return value of encode_fh function
  ceph: avoid null deref in osd request error path
  ceph: fix list_add usage on unsafe_writes list

* 'for-linus' of git://git.open-osd.org/linux-open-osd:
  exofs: Fix double page_unlock BUG in write_begin/end

* 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel:
  drm/i915: Prevent module unload to avoid random memory corruption

Merge branch 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung

* 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: SAMSUNG: Add a workaround for get_clock() for serial driver
  ARM: S5P: Bug fix on errors of build with CONFIG_PREEMPT_NONE
  ARM: SAMSUNG: Fix build warnings because of unused codes

Define an _addr_lsb field in the mips and ia64 siginfo_ts, following
the asm-generic version. This just puts the field over padding.

This fixes a compilation problem introduced with a337fdac.

Cc: ralf@linux-mips.org
Cc: tony.luck@intel.com
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Must drop reference taken by blk_make_request().
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org # .35.x
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

ATM-C6 was commented out, pending public documentation.

https://bugzilla.kernel.org/show_bug.cgi?id=19762Tested-by: Dennis Jansen <Dennis.Jansen@...>
Signed-off-by: Len Brown <len.brown@intel.com>

Calling ETHTOOL_GRXCLSRLALL with a large rule_cnt will allocate kernel
heap without clearing it. For the one driver (niu) that implements it,
it will leave the unused portion of heap unchanged and copy the full
contents back to userspace.
Signed-off-by: Kees Cook <kees.cook@canonical.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

setup.phone and setup.eazmsn are 32 character buffers.
rcvmsg.msg_data.byte_array is a 48 character buffer.
sc_adapter[card]->channel[rcvmsg.phy_link_no - 1].dn is 50 chars.

The rcvmsg struct comes from the memcpy_fromio() in receivemessage().
I guess that means it's data off the wire.  I'm not very familiar with
this code but I don't see any reason to assume these strings are NULL
terminated.

Also it's weird that "dn" in a 50 character buffer but we only seem to
use 32 characters.  In drivers/isdn/sc/scioc.h, "dn" is only a 49
character buffer.  So potentially there is still an issue there.

The important thing for now is to prevent the memory corruption.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This BUG is there since the first submit of the code, but only triggered
in last Kernel. It's timing related do to the asynchronous object-creation
behaviour of exofs. (Which should be investigated farther)

The bug is obvious hence the fixed.

Signed-off-by: Boaz Harrosh <Boaz Harrosh bharrosh@panasas.com>

The i915 driver has quite a few module unload bugs, the known ones at
least have fixes that are targeting 2.6.37. However, in order to
maintain a stable kernel, we should prevent this known random memory
corruption following driver unload. This should have very low impact on
normal users who are unlikely to need to unload the i915 driver.
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@kernel.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Serial drivers call get_clock() very early, before platform bus
has been set up, this requires a special check to let them get
a proper clock. Without this patch, a serial console is broken
on S5PV310 and S5PC210 boards.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[kgene.kim@samsung.com: fix coding-style]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>

This patch adds header <linux/sched.h> into the below files for build with
CONFIG_PREEMPT_NONE.

arch/arm/mach-s5p6440/cpu.c
arch/arm/mach-s5p6442/cpu.c
arch/arm/mach-s5pc100/cpu.c
arch/arm/mach-s5pv210/cpu.c

Following is error message of in case of s5pv210_defconfig with CONFIG_PREEMPT_NONE.

arch/arm/mach-s5pv210/cpu.c:91: error: implicit declaration of function 'need_resched'
Signed-off-by: SeungChull Suh <sc.suh@samsung.com>
[kgene.kim@samsung.com: removed mach-s5p64x0/cpu.c]
[kgene.kim@samsung.com: added fix mach-s5p6440/cpu.c]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

This patch removes following unused codes for removing build warnings.

arch/arm/plat-samsung/adc.c:438: warning: unused variable 'flags'
arch/arm/mach-s5pv210/clock.c:176: warning: 's5pv210_clk_ip4_ctrl' defined but not used
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

* 'hwpoison-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6:
  HWPOISON: Stop shrinking at right page count
  HWPOISON: Report correct address granuality for AO huge page errors
  HWPOISON: Copy si_addr_lsb to user
  page-types.c: fix name of unpoison interface

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  elevator: fix oops on early call to elevator_change()

* 'for-linus' of git://neil.brown.name/md:
  md: check return code of read_sb_page
  md/raid1: minor bio initialisation improvements.
  md/raid1:  avoid overflow in raid1 resync when bitmap is in use.

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm: don't drop handle reference on unload
  drm/ttm: Fix two race conditions + fix busy codepaths

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wacom - fix runtime PM related deadlock
  Input: joydev - fix JSIOCSAXMAP ioctl
  Input: uinput - setup MT usage during device creation

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: properly account for reclaimed inodes

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (37 commits)
  V4L/DVB: v4l: radio: si470x: fix unneeded free_irq() call
  V4L/DVB: v4l: videobuf: prevent passing a NULL to dma_free_coherent()
  V4L/DVB: ir-core: Fix null dereferences in the protocols sysfs interface
  V4L/DVB: v4l: s5p-fimc: Fix 3-planar formats handling and pixel offset error on S5PV210 SoCs
  V4L/DVB: v4l: s5p-fimc: Fix return value on probe() failure
  V4L/DVB: uvcvideo: Restrict frame rates for Chicony CNF7129 webcam
  V4L/DVB: uvcvideo: Fix support for Medion Akoya All-in-one PC integrated webcam
  V4L/DVB: ivtvfb: prevent reading uninitialized stack memory
  V4L/DVB: cx25840: Fix typo in volume control initialization: 65335 vs. 65535
  V4L/DVB: v4l: mem2mem_testdev: add missing release for video_device
  V4L/DVB: v4l: mem2mem_testdev: fix errorenous comparison
  V4L/DVB: mt9v022.c: Fixed compilation warning
  V4L/DVB: mt9m111: added current colorspace at g_fmt
  V4L/DVB: mt9m111: cropcap and s_crop check if type is VIDEO_CAPTURE
  V4L/DVB: mx2_camera: fix a race causing NULL dereference
  V4L/DVB: tm6000: bugfix data handling
  V4L/DVB: gspca - sn9c20x: Bad transfer size of Bayer images
  V4L/DVB: videobuf-dma-sg: set correct size in last sg element
  V4L/DVB: cx231xx: Avoid an OOPS when card is unknown (card=0)
  V4L/DVB: dvb: fix smscore_getbuffer() logic
  ...

* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  of/i2c: Fix module load order issue caused by of_i2c.c
  i2c: Fix checks which cause legacy suspend to never get called
  i2c-pca: Fix waitforcompletion() return value
  i2c: Fix for suspend/resume issue
  i2c: Remove obsolete cleanup for clientdata

When proc_doulongvec_minmax() is used with an array of longs, and no
min/max check requested (.extra1 or .extra2 being NULL), we dereference a
NULL pointer for the second element of the array.

Noticed while doing some changes in network stack for the "16TB problem"

Fix is to not change min & max pointers in __do_proc_doulongvec_minmax(),
so that all elements of the vector share an unique min/max limit, like
proc_dointvec_minmax().

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Americo Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>