Avoid calling copy_from/to_user() with fb_info->lock mutex held in fbmem
ioctl().

fb_mmap() is called under mm->mmap_sem (A) held, that also acquires
fb_info->lock (B); fb_ioctl() takes fb_info->lock (B) and does
copy_from/to_user() that might acquire mm->mmap_sem (A), causing a
deadlock.

NOTE: it doesn't push down the fb_info->lock in each own driver's
fb_ioctl(), so there are still potential deadlocks elsewhere.
Signed-off-by: NAndrea Righi <righi.andrea@gmail.com>
Cc: Dave Jones <davej@redhat.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Johannes Weiner <hannes@saeurebad.de>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Simple RTC driver for the MSP430 firmware on the DM355 EVM board.  Other
than not supporting atomic reads/writes of all four bytes, this is
reasonable as a basic no-alarm RTC.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
Acked-by: NAlessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

dell-laptop makes use of the power supply class information to choose
which backlight interface to change. Add a depends on it.
Signed-off-by: NMatthew Garrett <mjg@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The swap() macro is accidentally retuning the value of its first argument.
Change it into a doesn't-return-anything macro before someone goes and
relies upon this behaviour.
Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The device can take a while to respond to an open/close request, so
increase the time kernel will wait for response (1 ms to 10ms).

Also, properly clean up a channel on a failed open, by calling the channel
close routine.  Just freeing the memory isn't sufficient, the device needs
to be informed that the channel is no longer open, and the device memory
cleared of references to freed dma buffer.
Signed-off-by: NDavid Altobelli <david.altobelli@hp.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

alpha:

kernel/async.c: In function 'run_one_entry':
kernel/async.c:141: warning: format '%lli' expects type 'long long int', but argument 2 has type 'async_cookie_t'
kernel/async.c:149: warning: format '%lli' expects type 'long long int', but argument 2 has type 'async_cookie_t'
kernel/async.c:149: warning: format '%lld' expects type 'long long int', but argument 4 has type 's64'
kernel/async.c: In function 'async_synchronize_cookie_special':
kernel/async.c:250: warning: format '%lli' expects type 'long long int', but argument 3 has type 's64'

Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: APIC: enable workaround on AMD Fam10h CPUs
  xen: disable interrupts before saving in percpu
  x86: add x86@kernel.org to MAINTAINERS
  x86: push old stack address on irqstack for unwinder
  irq, x86: fix lock status with numa_migrate_irq_desc
  x86: add cache descriptors for Intel Core i7
  x86/Voyager: make it build and boot

Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: add missing kernel-doc in sched.h

Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  ftrace: do_each_pid_task() needs rcu lock

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: pcm_oss: AFMT_S24_LE is set twice in return value
  ALSA: ASoC: email - update email addresses.
  OMAP: ASoC: Fix spinlock misuse in omap-pcm.c
  ALSA: hda - No widget selection for volume knob widgets in proc output
  ALSA: hda - Add support of iMac 24 Aluminium
  ALSA: alsa: time reaches -1, tested 0
  ALSA: hda - Add quirk for another HP dv5 model

AFMT_S24_LE is set twice in return value

vi sound/core/oss/pcm_oss.c +640
#define AFMT_S24_LE      0x00008000
#define AFMT_S24_BE      0x00010000
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (40 commits)
  Blackfin arch: Remove outdated code
  Blackfin arch: Fix udelay implementation
  Blackfin arch: Update Copyright information
  Blackfin arch: Add BF561 PPI POLS, POLC Masks
  Blackfin arch: Update CM-BF527 kernel config
  Blackfin arch: define bfin_memmap as static since it is only used here
  Blackfin arch: cplb mananger: use a do...while loop rather than a for loop
  Blackfin arch: fix bug - traps test case 19 for exception 0x2d fails
  Blackfin arch: add platform device bfin_mii-bus and KSZ8893M switch driver platform resources to board files
  Blackfin arch: build jtag tty driver as a module by default
  Blackfin arch: fix 2 bugs related to debug
  Blackfin arch: Add ANOMALY_05000380 to BF54x to kill the compile warning
  Blackfin arch: Fix bug - 561 SMP kernel can't boot from jffs2
  Blackfin arch: base SIC_IWR# programming on whether the MMR exists
  Blackfin arch: read SYSCR on newer parts that mirror the bits of SWRST in it
  Blackfin arch: fixup board init function name
  Blackfin arch: drop CONFIG_I2C_BOARDINFO ifdefs
  Blackfin arch: bfin_reset->_bfin_reset redirection no longer needed
  Blackfin arch: sync reboot handler with version in u-boot
  Blackfin arch: Faster Implementation of csum_tcpudp_nofold()
  ...

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Kill bogus TPC/address truncation during 32-bit faults.
  sparc: fixup for sparseirq changes
  sparc64: Validate kernel generated fault addresses on sparc64.
  sparc64: On non-Niagara, need to touch NMI watchdog in NOHZ mode.
  sparc64: Implement NMI watchdog on capable cpus.
  sparc: Probe PMU type and record in sparc_pmu_type.
  sparc64: Move generic PCR support code to seperate file.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  sunrpc: fix rdma dependencies
  e1000: Fix PCI enable to honor the need_ioport flag
  sgi-xp: link XPNET's net_device_ops to its net_device structure
  pcnet_cs: Fix misuse of the equality operator.
  hso: add new device id's
  dca: redesign locks to fix deadlocks
  cassini/sungem: limit reaches -1, but 0 tested
  net: variables reach -1, but 0 tested
  qlge: bugfix: Add missing netif_napi_del call.
  qlge: bugfix: Add flash offset for second port.
  qlge: bugfix: Fix endian issue when reading flash.
  udp: increments sk_drops in __udp_queue_rcv_skb()
  net: Fix userland breakage wrt. linux/if_tunnel.h
  net: packet socket packet_lookup_frame fix

* 'for-linus' of git://git.o-hand.com/linux-mfd:
  mfd: Remove non exported references from pcf50633

The removed version with the loop registers saved on the stack was
originally intended to workaround the missing toolchain support for
LoopReg Clobbers.

Since our toolchain now supports these there is no point in keeping this
workaround. And since we don't touch LoopRegs anymore we're no longer
subject for ANOMALY_05000312.
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Avoid possible overflow during 32*32->32 multiplies.
Reported-by: NMarco Reppenhagen <marco.reppenhagen@auerswald.de>
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Signed-off-by: NMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

use a do...while loop rather than a for loop to get slightly better
optimization and to avoid gcc "may be used uninitialized" warnings ...
we know that the [id]cplb_nr_bounds variables will never be 0, so this
is OK
Signed-off-by: NMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Enable null pointer checking for ICPLBs. The code was there but for
some reason I had commented it out at some stage during development.

Should restrict this to 1K since atomic ops start there.
Signed-off-by: NBernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Blackfin arch: add platform device bfin_mii-bus and KSZ8893M switch driver platform resources to board files
Signed-off-by: NGraf Yang <graf.yang@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Signed-off-by: NMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

 - unable to single step over emuexcpt instruction
 - gdbproxy goes into infinite loop when doing gdb does "next" over
   "emuexcpt"

Don't decrement PC after software breakpoint.
Signed-off-by: NJie Zhang <jie.zhang@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Signed-off-by: NBryan Wu <cooloney@kernel.org>

bss_l2 section is garbage when the data in this section is used by
_bfin_relocate_l1_mem, so move the zero out function ahead.
Signed-off-by: NGraf Yang <graf.yang@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

base SIC_IWR# programming on whether the MMR exists
rather than having to maintain another list of processors
Signed-off-by: NMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Signed-off-by: NMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Signed-off-by: NMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Drop CONFIG_I2C_BOARDINFO ifdefs as the common i2c header handles this
already by stubbing things out
Signed-off-by: NMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Signed-off-by: NMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Signed-off-by: NMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Avoid conditional branch instructions during carry bit additions.
Special thanks to Bernd.
Simplify: Use ((len + proto) << 8) like every other __LITTLE_ENDIAN__ machine

Cc: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

[Mike Frysinger <vapier.adi@gmail.com>: keep the ifdef nest down]
Signed-off-by: NGraf Yang <graf.yang@analog.com>
Signed-off-by: NMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>

Signed-off-by: NGrace Pan <grace.pan@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>