"ret" is used to store the return value for watchdog_trigger() and it
should be signed for the error handling to work.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Add missing newline to dev_warn() message string. This is more of an issue
with older kernels that don't automatically add a newline if it was missing
from the end of the previous line.
Signed-off-by: Dean Nelson <dnelson@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Avoid hex and decimal confusion when printing out the cpu model.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
[The issue is an attempt to write the pdata without the AC97 device
allocated when using ac97.c - also added a comment in soc-core.c for the
special case for ac97. -- broonie]
Signed-off-by: Graham Gower <graham.gower@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In some error handling cases the lock is not unlocked. The return is
converted to a goto, to share the unlock at the end of the function.
A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
expression E1;
identifier f;
@@
f (...) { <+...
* spin_lock_irq (E1,...);
... when != E1
* return ...;
...+> }
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
LKML-Reference: <Pine.LNX.4.64.1003291736440.21896@ask.diku.dk>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
# echo 1 > events/enable
# echo global > trace_clock
------------[ cut here ]------------
WARNING: at kernel/lockdep.c:3162 check_flags+0xb2/0x190()
...
---[ end trace 3f86734a89416623 ]---
possible reason: unannotated irqs-on.
...
There's no reason to use the raw_local_irq_save() in trace_clock_global.
The local_irq_save() version is fine, and does not cause the bug in lockdep.
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4BA97FA1.7030606@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
If the device contains on old logfs image and the journal is moved to
segment that have never been used by the current logfs and not all
journal segments are erased before the next mount, the old content can
confuse mount code. To prevent this, always erase the new journal
segments.
Signed-off-by: Joern Engel <joern@logfs.org>
This avoids an infinite loop in free_early_partial().
Add a warning to free_early_partial() to catch future problems.
-v5: put back start > end back into WARN_ONCE()
-v6: use one line for warning, suggested by Linus
-v7: more tests
-v8: remove the function name as suggested by Johannes
WARN_ONCE() will print out that function name.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Joel Becker <joel.becker@oracle.com>
Tested-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: David Miller <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <1269830604-26214-4-git-send-email-yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
When CONFIG_NO_BOOTMEM=y, it could use memory more effiently, or
in a more compact fashion.
Example:
Allocated new RAMDISK: 00ec2000 - 0248ce57
Move RAMDISK from 000000002ea04000 - 000000002ffcee56 to 00ec2000 - 0248ce56
The new RAMDISK's end is not page aligned.
Last page could be shared with other users.
When free_init_pages are called for initrd or .init, the page
could be freed and we could corrupt other data.
code segment in free_init_pages():
| for (; addr < end; addr += PAGE_SIZE) {
| ClearPageReserved(virt_to_page(addr));
| init_page_count(virt_to_page(addr));
| memset((void *)(addr & ~(PAGE_SIZE-1)),
| POISON_FREE_INITMEM, PAGE_SIZE);
| free_page(addr);
| totalram_pages++;
| }
last half page could be used as one whole free page.
So page align the boundaries.
-v2: make the original initramdisk to be aligned, according to
Johannes, otherwise we have the chance to lose one page.
we still need to keep initrd_end not aligned, otherwise it could
confuse decompressor.
-v3: change to WARN_ON instead, suggested by Johannes.
-v4: use PAGE_ALIGN, suggested by Johannes.
We may fix that macro name later to PAGE_ALIGN_UP, and PAGE_ALIGN_DOWN
Add comments about assuming ramdisk start is aligned
in relocate_initrd(), change to re get ramdisk_image instead of save it
to make diff smaller. Add warning for wrong range, suggested by Johannes.
-v6: remove one WARN()
We need to align beginning in free_init_pages()
do not copy more than ramdisk_size, noticed by Johannes
Reported-by: Stanislaw Gruszka <sgruszka@redhat.com>
Tested-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: David Miller <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <1269830604-26214-3-git-send-email-yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
New documentation should have an entry in the 00-INDEX. Correct git
urls.
Signed-off-by: Cheng Renquan <crquan@gmail.com>
Signed-off-by: Sage Weil <sage@newdream.net>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
Revert "ide: skip probe if there are no devices on the port (v2)"
Revert "via82cxxx: workaround h/w bugs"
Commit b26b2d494b ("resource/PCI: align functions now return start
of resource") added lines with missing semicolons.
Add the missing semicolons to the FRV and CRIS arch code.
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: linux@dominikbrodowski.net
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix a potential soft lockup in the AT91 UDC driver by ensuring that
the UDC clock is enabled inside the interrupt handler. If the UDC clock is not enabled then the UDC registers cannot be written to
and the interrupt cannot be cleared or masked.
Note that this patch (and other parts of the existing AT91 UDC
driver) is potentially racy for preempt-rt kernels,
but is okay for mainline.
For more info see:
http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20100203/09cdb3b4/attachment.elhttp://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20100203/8443a1e4/attachment.el
Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>
Acked-by: Harro Haan <hrhaan@gmail.com>
Tested-by: Remy Bohmer <linux@bohmer.net>
Acked-by: Andrew Victor <avictor.za@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
When compiling the kernel to Thumb-2, using a 16-bit NOP in the
memmove() implementation causes the preceding ADD PC instruction to
branch incorrectly in the middle of a 32-bit LDR or STR instruction. The
memmove() code is now similar to the memcpy() template.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Current implementation of jprobes allocates empty pt_regs from the
stack which is then passed to kprobe_handler() and eventually to
singlestep(). Now when instruction being simulated is STMFD (like
in normal function prologues without CONFIG_FRAME_POINTER), stores
using SP actually write over top of the fabricated pt_regs
structure.
This can be reproduced for example by using LKDTM module:
# modprobe lkdtm
# mount -t debugfs none /sys/kernel/debug
# echo PANIC > /sys/kernel/debug/provoke-crash/INT_HW_IRQ_EN
after this, it fails with corrupted registers (before the requested crash would occur):
lkdtm: Crash point INT_HW_IRQ_EN of type PANIC hit, trigger in 9 rounds
lkdtm: Crash point INT_HW_IRQ_EN of type PANIC hit, trigger in 8 rounds
Internal error: Oops - undefined instruction: 0 [#1]
last sysfs file: /sys/devices/platform/serial8250.0/sleep_timeout
Modules linked in: lkdtm
CPU: 0 Not tainted (2.6.34-rc2 #69)
PC is at irq_desc+0x1638/0xeeb0
LR is at 0x25
pc : [<c050b428>] lr : [<00000025>] psr: c80a0013
sp : ce94bd60 ip : c050b3e8 fp : a0000013
r10: c0aa453c r9 : cf5d4000 r8 : ce9a1822
r7 : c050b424 r6 : 00000025 r5 : c039d8f8 r4 : c050b3e8
r3 : 00000001 r2 : cf4d0440 r1 : c039d8f8 r0 : 00000020
Flags: NZcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: 10c5387d Table: 8e804019 DAC: 00000015
Process sh (pid: 496, stack limit = 0xce94a2e8)
Stack: (0xce94bd60 to 0xce94c000)
[...]
Code: 000002cd 00000000 00000000 00000001 (dead4ead)
---[ end trace 2b46d5f2b682f370 ]---
Kernel panic - not syncing: Fatal exception in interrupt
This patch allocates enough space (2 * sizeof(struct pt_regs)) from
the stack to prevent such corruption.
Signed-off-by: Mika Westerberg <ext-mika.1.westerberg@nokia.com>
Acked-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
pl061.h is using u8 type. including <linux/types.h> in pl061.h to avoid
warning.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
clkdev.h is using struct device *. Due to this compilation
warning is comming. Removing this warning.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
irq.h is using struct pt_regs *. Due to this compilation
warning is comming. Removing this warning by adding declaration
of struct pt_regs.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
linux/amba/bus.h have dependencies on linux/device.h and linux/resource.h, but
it doesn't include them. We get compilation errors in our files which include
bus.h but doesn't include device.h and resource.h. This patch includes device.h
and resource.h in linux/amba/bus.h file.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Linux Walleij <linux.ml.walleij@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
CONFIG_SLOW_WORK_PROC was changed to CONFIG_SLOW_WORK_DEBUG, but not in all
instances. Change the remaining instances. This makes the debugfs file
display the time mark and the owner's description again.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Otherwise we can get an oops if the user has no get_ref/put_ref
requirement.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda: Use LPIB for ga-ma770-ud3 board
ALSA: ac97: Add Toshiba P500 to ac97 jack sense blacklist
ALSA: pcm_lib - fix xrun functionality
ALSA: ac97: Add IBM ThinkPad R40e to Headphone/Line Jack Sense blacklist
ALSA: hda - Don't set invalid connection index in Realtek initialiaiton
FC disable is bit 3 of the txmac ctl register, but commit 6720949d55
("Staging: et131x: Kil the txmac type") accidentally changed the code to
set bit 2 instead.
Signed-off-by: Nick Bowler <nbowler@draconx.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ALC269 codec has a few different variants, and each of them may have
different ADC and MUX widgets. For example, one model has ADC 0x08
with MUX 0x23 while others has ADC 0x09 or ADC 0x07 with MUX 022 or
0x24. The difference of ADC appears usually as the capability of
the digital mic pin (0x12), and the current driver sometimes misses
the internal mic pin due to the mismatching ADC.
This patch adds a bit more clever way to find the matching ADC instead
of the static list. Now the driver checks all active input pins and
fills only the ADC/MUX's that contain all of them.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
lockdep has custom code to check whether a pointer belongs to static
percpu area which is somewhat broken. Implement proper
is_kernel/module_percpu_address() and replace the custom code.
On UP, percpu variables are regular static variables and can't be
distinguished from them. Always return %false on UP.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@redhat.com>
Better encapsulate module static percpu area handling so that code
outsidef of CONFIG_SMP ifdef doesn't deal with mod->percpu directly
and add mod->percpu_size and record percpu_size in it. Both percpu
fields are compiled out on UP. While at it, mark mod->percpu w/
__percpu.
This is to prepare for is_module_percpu_address().
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
The mask and value parameters passed to snd_hda_codec_amp_stereo()
should be 8-bit values for mute and volume. Passing AMP_IN_MUTE() is
wrong, which is found in many places in patch_realtek.c as a left-over
from the conversion to snd_hda_codec_amp_stereo().
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
BugLink: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=575669
The OR states that position_fix=1 is necessary to work around glitching
during volume adjustments using PulseAudio.
Reported-by: Carlos Laviola <claviola@debian.org>
Tested-by: Carlos Laviola <claviola@debian.org>
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
BugLink: https://launchpad.net/bugs/481058
The OR has verified that both 'Headphone Jack Sense' and 'Line Jack Sense'
need to be muted for sound to be audible, so just add the machine's SSID
to the ac97 jack sense blacklist.
Reported-by: Richard Gagne
Tested-by: Richard Gagne
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
There was a use after free in __unregister_request that would trigger
whenever the request map held the last reference. This appears to have
triggered an oops during 'umount -f' when requests are being torn down.
Signed-off-by: Sage Weil <sage@newdream.net>
For the boot, enable_mmu() is called from setup_arch() but we don't call
setup_arch() for any of the other cpus. So turn on the non-boot cpu's
mmu inside of start_secondary().
I noticed this bug on an SMP board when trying to map I/O memory
(smsc911x registers) into the kernel address space. Since the Address
Translation bit in MMUCR wasn't set, accessing the virtual address where
the smsc911x registers were supposedly mapped actually performed a
physical address access.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Cc: stable@kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Ensure that the aux table is properly initialized, even when optional
features are missing. Without this, the FDPIC loader did not work.
Signed-off-by: Andrew Stubbs <ams@codesourcery.com>
Cc: stable@kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Use set_cpus_allowed_ptr rather than set_cpus_allowed.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression E1,E2;
@@
- set_cpus_allowed(E1, cpumask_of_cpu(E2))
+ set_cpus_allowed_ptr(E1, cpumask_of(E2))
@@
expression E;
identifier I;
@@
- set_cpus_allowed(E, I)
+ set_cpus_allowed_ptr(E, &I)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This is ipv6 variant of the commit 5e016cbf6.. ("ipv4: Don't drop
redirected route cache entry unless PTMU actually expired")
by Guenter Roeck <guenter.roeck@ericsson.com>.
Remove cache route entry in ipv6_negative_advice() only if
the timer is expired.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit a20b2a44ec.
As requested by David Fries. This makes CDROMs which are slave drives
on a ribbon without a master disappear and causes other similar kinds
of badness.
Signed-off-by: David S. Miller <davem@davemloft.net>
As reported by Stephen Rothwell.
drivers/net/tulip/uli526x.c: In function 'uli526x_rx_packet':
drivers/net/tulip/uli526x.c:861: warning: assignment makes pointer from integer without a cast
Signed-off-by: David S. Miller <davem@davemloft.net>
do_logfs_journal_wl_pass() must call freeseg(), thereby clear
PagePrivate on all pages of the current journal segment.
Signed-off-by: Joern Engel <joern@logfs.org>
A comment in the old code read:
/* The math in this function can surely use some love */
And indeed it did. In the case that area->a_used_bytes is exactly
4096 bytes below segment size it fell apart. pad_wbuf is now split
into two helpers that are significantly less complicated.
Signed-off-by: Joern Engel <joern@logfs.org>
The comment was correct, so make the code match the comment. As the
new comment indicates, we might be able to do a little less work. But
for the current -rc series let's keep it simple and just fix the bug.
Signed-off-by: Joern Engel <joern@logfs.org>
A CPU has VFPv3 hardware if the FPSID[19:16] bits are 2 or more.
Currently Linux was only checking for 3 or more.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
When using VT6410/6415/6330 chips on some VIA's platforms, the HDD
connection to VT6410/6415/6330 cannot be detected.
It is because the driver detects wrong via_isa_bridge ID, and then
causes this issue to happen.
Signed-off-by: Joseph Chan <josephchan@via.com.tw>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Use set_cpus_allowed_ptr rather than set_cpus_allowed.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression E1,E2;
@@
- set_cpus_allowed(E1, cpumask_of_cpu(E2))
+ set_cpus_allowed_ptr(E1, cpumask_of(E2))
@@
expression E;
identifier I;
@@
- set_cpus_allowed(E, I)
+ set_cpus_allowed_ptr(E, &I)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is quite similar to b39fe41f48
though said registers are not even documented as 64-bit registers
- as opposed to the initial TxDescStartAddress ones - but as single
bytes which must be combined into 32 bits at the MMIO read/write
level before being merged into a 64 bit logical entity.
Credits go to Ben Hutchings <ben@decadent.org.uk> for the MAR
registers (aka "multicast is broken for ages on ARM) and to
Timo Teräs <timo.teras@iki.fi> for the MAC registers.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter