When backlight_device_register() fails, return after undo initialization, do
not try to use pointer that just was reset to NULL

This fixes this oops:

[ 1595.177672]  [<c010480a>] show_trace_log_lvl+0x1a/0x30
[ 1595.177706]  [<c01052a2>] show_trace+0x12/0x20
[ 1595.177718]  [<c0105305>] dump_stack+0x15/0x20
[ 1595.177728]  [<c01c9375>] kobject_shadow_add+0x125/0x1c0
[ 1595.177754]  [<c01c941a>] kobject_add+0xa/0x10
[ 1595.177764]  [<c0239a37>] device_add+0x97/0x5d0
[ 1595.177776]  [<c0239f82>] device_register+0x12/0x20
[ 1595.177786]  [<dfd912df>] backlight_device_register+0x9f/0x110 [backlight]
[ 1595.177814]  [<df861117>] toshiba_acpi_init+0x117/0x15e [toshiba_acpi]
[ 1595.177834]  [<c013e28d>] sys_init_module+0xfd/0x14e0
[ 1595.177871]  [<c0104112>] sysenter_past_esp+0x5f/0x99
[ 1595.177883]  =======================
[ 1595.177890] Could not register toshiba backlight device
[ 1595.177985] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000004
...
[ 1595.394097] EIP:    0060:[<df861143>]    Not tainted VLI
[ 1595.394101] EFLAGS: 00010282   (2.6.23-rc9-1avb #24)
[ 1595.480081] EIP is at toshiba_acpi_init+0x143/0x15e [toshiba_acpi]
Signed-off-by: NAndrey Borzenkov <arvidjaar@mail.ru>
Cc: John Belmonte <toshiba_acpi@memebeam.org>
Acked-by: NRichard Purdie <rpurdie@rpsys.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

page->index should be cast to loff_t instead of off_t.
Signed-off-by: NMichael Halcrow <mhalcrow@us.ibm.com>
Reported-by: NEric Sandeen <sandeen@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Fix ide-cris, cs5530, sc1200 and sis5513 host drivers to just return instead
of OOPS-ing for unsupported modes in ->set_dma_mode methods.
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Use drive->select.all for REQ_TYPE_ATA_TASK requests in execute_drive_cmd()
(the obsolete bits 7 and 5 of the Device register need to be set).
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

We can skip conservative PIO "downgrade" (PIO3 becomes PIO2 etc.) on PMAC.

Problem reported by Mikael.

Cc: Mikael Pettersson <mikpe@it.uu.se>
Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

LILO version 16 was released on 26-02-1995 (sic), so telling people to not use
older versions no longer has any value.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Make sure to not clear the other IDE channel's interrupt when clearing an IDE
interrupt via the MRDMODE register.

Thanks to Bart for finding a coding mistake.

Bart:

This fixes regression from commit 66602c83
("cmd64x: use interrupt status from MRDMODE register (take 2)").

Extra thanks to Martin for reporting and bisecting the issue.

From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Tested-by: NMartin Rogge <marogge@onlinehome.de>
Tested-by: NMilan Kocian <milon@wq.cz>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6:
  hwmon: (i5k_amb) Convert macros to C functions
  hwmon: (w83781d) Add missing curly braces
  hwmon: (abituguru3) Identify ABit IP35 Pro as such
  hwmon: (f75375s) pwmX_mode sysfs files writable for f75375 variant
  hwmon: (f75375s) On n2100 systems, set fans to full speed on boot
  hwmon: (f75375s) Allow setting up fans with platform_data
  hwmon: (f75375s) Add new style bindings
  hwmon: (lm70) Convert semaphore to mutex
  hwmon: (applesmc) Add support for Mac Pro 2 x Quad-Core
  hwmon: (abituguru3) Add support for 2 new motherboards
  hwmon: (ibmpex) Change printk to dev_{info,err} macros
  hwmon: (i5k_amb) New memory temperature sensor driver
  hwmon: (f75375s) fix pwm mode setting
  hwmon: (ibmpex.c) fix NULL dereference
  hwmon: (sis5595) Split sis5595_attributes_opt
  hwmon: (sis5595) Add individual alarm files
  hwmon: (w83627hf) push nr+1 offset into *_REG_FAN macros and simplify
  hwmon: (w83627hf) hoist nr-1 offset out of show-store-temp-X
  hwmon: Add power meter spec to Documentation/hwmon/sysfs-interface

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (45 commits)
  [NETFILTER]: xt_time should not assume CONFIG_KTIME_SCALAR
  [NET]: Move unneeded data to initdata section.
  [NET]: Cleanup pernet operation without CONFIG_NET_NS
  [TEHUTI]: Fix incorrect usage of strncat in bdx_get_drvinfo()
  [MYRI_SBUS]: Prevent that myri_do_handshake lies about ticks.
  [NETFILTER]: bridge: fix double POSTROUTING hook invocation
  [NETFILTER]: Consolidate nf_sockopt and compat_nf_sockopt
  [NETFILTER]: nf_nat: fix memset error
  [INET]: Use list_head-s in inetpeer.c
  [IPVS]: Remove unused exports.
  [NET]: Unexport sysctl_{r,w}mem_max.
  [TG3]: Update version to 3.86
  [TG3]: MII => TP
  [TG3]: Add A1 revs
  [TG3]: Increase the PCI MRRS
  [TG3]: Prescaler fix
  [TG3]: Limit 5784 / 5764 to MAC LED mode
  [TG3]: Disable GPHY autopowerdown
  [TG3]: CPMU adjustments for loopback tests
  [TG3]: Fix nvram selftest failures
  ...

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Silence an annoying boot message
  [POWERPC] Fix early btext debug on PowerMac
  [POWERPC] Demote clockevent printk to KERN_DEBUG
  [POWERPC] Fix CONFIG_SMP=n build error on ppc64
  [POWERPC] Avoid unpaired stwcx. on some processors
  [POWERPC] Fix oops related to 4xx flush_tlb_page modification
  [POWERPC] cpm: Fix a couple minor issues in cpm_common.c.
  [POWERPC] Add -mno-spe for ARCH=powerpc builds

get_property() should not call battery_update(), it also should call
get_status() only if battery is present to avoid cycle and oops.
Signed-off-by: NAlexey Starikovskiy <astarikovskiy@suse.de>
Tested-by: NRolf Eike Beer <eike-kernel@sf-tec.de>
Acked-by: NJohannes Weiner <hannes@saeurebad.de>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This reverts commit 7c9e69fa, fixing up
conflicts in fs/ext4/balloc.c manually.

The cost of doing the bitmap validation on each lookup - even when the
bitmap is cached - is absolutely prohibitive.  We could, and probably
should, do it only when adding the bitmap to the buffer cache.  However,
right now we are better off just reverting it.

Peter Zijlstra measured the cost of this extra validation as a 85%
decrease in cached iozone, and while I had a patch that took it down to
just 17% by not being _quite_ so stupid in the validation, it was still
a big slowdown that could have been avoided by just doing it right.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>
Cc: Andreas Dilger <adilger@clusterfs.com>
Cc: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

It is not correct to assume one can get nsec from a ktime directly by
using .tv64 field.
Signed-off-by: NEric Dumazet <dada1@cosmosbay.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch reverts Eric's commit 2b008b0a

It diets .text & .data section of the kernel if CONFIG_NET_NS is not set.
This is safe after list operations cleanup.
Signed-of-by: NDenis V. Lunev <den@openvz.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If CONFIG_NET_NS is not set, the only namespace is possible.

This patch removes list of pernet_operations and cleanups code a bit.
This list is not needed if there are no namespaces. We should just call
->init method.

Additionally, the ->exit will be called on module unloading only. This
case is safe - the code is not discarded. For the in/kernel code, ->exit
should never be called.
Signed-off-by: NDenis V. Lunev <den@openvz.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Fix incorrect length for strncat by replacing it with strlcat
Signed-off-by: NRoel Kluin <12o3l@tiscali.nl>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

With '<=' tick can be incremented up to 26, The last loop is redundant
since even when 'softstate' becomes 'STATE_READY', 'if (tick > 25)'
will still cause the function to return -1,
Signed-off-by: NRoel Kluin <12o3l@tiscali.nl>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Packets routed between bridges have the POST_ROUTING hook invoked
twice since bridging mistakes them for bridged packets because
they have skb->nf_bridge set.
Signed-off-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Both lookup the nf_sockopt_ops object to call the get/set callbacks
from, but they perform it in a completely similar way.

Introduce the helper for finding the ops.
Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
Signed-off-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The size passing to memset is the size of a pointer.
Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com>
Signed-off-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The inetpeer.c tracks the LRU list of inet_perr-s, but makes
it by hands. Use the list_head-s for this.
Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch removes the following unused EXPORT_SYMBOL's:
- ip_vs_try_bind_dest
- ip_vs_find_dest
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

sysctl_{r,w}mem_max can now be unexported.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

vmemmap_populate will printk (with KERN_WARNING) for a lot of pages
if CONFIG_SPARSEMEM_VMEMMAP is enabled (at least it does on iSeries).
Use pr_debug for it instead.

Replace the only other use of DBG in this file with pr_debug as well.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This patch updates the version number to 3.86
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The early btext debug wouldn't work on PowerMac when booted from BootX
due to the code looking for the wrong property name.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

These don't need to be seen by everyone on every boot.
Signed-off-by: NTony Breeds <tony@bakeyournoodle.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

The patch "KVM: fix !SMP build error" change the way smp_call_function()
actually uses the passed in function names on non-SMP builds.  So
previously it was never caught that the function passed in was never
actually defined.

This causes a build error on ppc64_defconfig + CONFIG_SMP=n:

arch/powerpc/mm/tlb_64.c: In function 'pgtable_free_now':
arch/powerpc/mm/tlb_64.c:71: error: 'pte_free_smp_sync' undeclared (first use in this function)
arch/powerpc/mm/tlb_64.c:71: error: (Each undeclared identifier is reported only once
arch/powerpc/mm/tlb_64.c:71: error: for each function it appears in.)

So we need to define it even if CONFIG_SMP is off. Either that or ifdef
out the smp_call_function() call, but that's ugly.
Signed-off-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

The context switch code in the kernel issues a dummy stwcx. to clear the
reservation, as recommended by the architecture.  However, some processors
can have issues if this stwcx to address A occurs while the reservation
is already held to a different address B.  To avoid this problem, the dummy
stwcx. needs to be paired with a dummy lwarx to the same address.

This adds the dummy lwarx, and creates a cpu feature bit to indicate
which cpus are affected.  Tested on mpc8641_hpcn_defconfig in
arch/powerpc; build tested in arch/ppc.
Signed-off-by: NBecky Bruce <becky.bruce@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This patch changes the PHY type reported through ethtool for copper
devices from MII to TP.  The latter is more accurate.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds the A1 revision of 5784, 5764, and 5761, and applies all
previous bugfixes.  In places where the list of devices gets too long,
the patch uses a new TG3_FLG3_5761_5784_AX_FIXES flag instead.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Previous devices hardcoded the PCI Maximum Read Request Size to 4K.  To
better comply with the PCI spec, the hardware now defaults the MRRS to
512 bytes.  This will yield poor driver performance if left untouched.
This patch increases the MRRS to 4K on driver initialization.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Internal hardware timers become inaccurate after link events.  Clock
frequency switches performed by the CPMU fail to adjust timer
prescalers.  The fix is to detect core clock frequency changes during
link events and adjust the timer prescalers accordingly.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Most 5784 / 5764 LED modes do not work as expected because of a hardware
bug.  This patch forces the LED mode to be in MAC LED mode.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

New CPMU devices contend with the GPHY for power management.  The GPHY
autopowerdown feature is enabled by default in the PHY and thus needs to
be disabled after every PHY reset.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds the LINK_SPEED mode to the list of CPMU modes that can
cause the loopback tests to fail.  These bugs are planned to be fixed in
future revisions of the chip, so the patch qualifies the fixes as such.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Newer devices contain bootcode in the chip's private ROM area.  This
bootcode is called selfboot.  Selfboot can be patched in the device's
NVRAM and the patches can have several formats.  In one particular
format, the checksum calculation needs to be slightly modified.  This
patch adjusts the NVRAM test code for that case, and add support for the
missing formats.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>