05 Oct, 2009
10 commits
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If i2c device probing fails, then there is no driver to dereference
after calling i2c_new_device(). Stop assuming that probing will always
succeed, to avoid NULL pointer dereferences. We have an easier access
to the driver anyway.Signed-off-by: Jean Delvare
Tested-by: Tim Shepard
Cc: Colin Leroy -
When an ACPI resource conflict is detected, error messages are already
printed by ACPI. There's no point in causing the driver core to print
more error messages, so return one of the error codes for which no
message is printed.This fixes bug #14293:
http://bugzilla.kernel.org/show_bug.cgi?id=14293Signed-off-by: Jean Delvare
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The sysfs path to i2c adapters has changed recently, update the
documentation to reflect that change.Signed-off-by: Jean Delvare
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The I2C_CLIENT_INSMOD_1 macro is only useful for i2c drivers which
implement device detection. The ab3100 driver doesn't, so there is no
point in calling it.Signed-off-by: Jean Delvare
Acked-by: Linus Walleij
Cc: Samuel Ortiz -
The I2C_CLIENT_INSMOD macro is only useful for i2c drivers which
implement device detection. The tsl2561 driver doesn't, so there
is no point in calling it.Signed-off-by: Jean Delvare
Cc: Jonathan Cameron -
The I2C_CLIENT_INSMOD_1 macro is only useful for i2c drivers which
implement device detection. The leds-pca9532 driver doesn't, so there
is no point in calling it.Signed-off-by: Jean Delvare
Cc: Richard Purdie
Cc: Riku Voipio -
There is no point in implementing a detect callback for the LTC4215
and LTC4245, as these devices can't be detected. It was there solely
to handle "force" module parameters to instantiate devices, but now
we have a better sysfs interface that can do the same.So we can get rid of the ugly module parameters and the detect
callbacks. This shrinks the binary module sizes by 36% and 46%,
respectively.Signed-off-by: Jean Delvare
Cc: Ira W. Snyder -
There is no point in implementing a detect callback for the DS2482, as
this device can't be detected. It was there solely to handle "force"
module parameters to instantiate devices, but now we have a better sysfs
interface that can do the same.So we can get rid of the ugly module parameters and the detect callback.
This shrinks the binary module size by 21%.Signed-off-by: Jean Delvare
Acked-by: Ben Gardner -
There is no point in implementing a detect callback for the MAX6875, as
this device can't be detected. It was there solely to handle "force"
module parameters to instantiate devices, but now we have a better sysfs
interface that can do the same.So we can get rid of the ugly module parameters and the detect callback.
This basically divides the binary module size by 2.Signed-off-by: Jean Delvare
Acked-by: Wolfram Sang
Acked-by: Ben Gardner -
Some times ago the eeprom and max6875 drivers moved to
drivers/misc/eeprom, but their documentation did not follow. It's
finally time to get rid of Documentation/i2c/chips.Signed-off-by: Jean Delvare
Cc: Ben Gardner
Acked-by: Wolfram Sang
04 Oct, 2009
12 commits
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* 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_dev:
m32r: Fix IPI function calls for SMP
m32r: Fix set_memory() for DISCONTIGMEM
m32r: add rtc_lock variable
m32r: define ioread* and iowrite* macros
m32r: export delay loop symbols
m32r: fix tme_handler -
A couple of people have hit the WARN_ON() in drivers/char/tty_io.c,
tty_open() that is unhappy about seeing the tty line discipline go away
during the tty hangup. See for examplehttp://bugzilla.kernel.org/show_bug.cgi?id=14255
and the reason is that we do the tty_ldisc_halt() outside the
ldisc_mutex in order to be able to flush the scheduled work without a
deadlock with vhangup_work.However, it turns out that we can solve this particular case by
- using "cancel_delayed_work_sync()" in tty_ldisc_halt(), which waits
for just the particular work, rather than synchronizing with any
random outstanding pending work.This won't deadlock, since the buf.work we synchronize with doesn't
care about the ldisc_mutex, it just flushes the tty ldisc buffers.- realize that for this particular case, we don't need to wait for any
hangup work, because we are inside the hangup codepaths ourselves.so as a result we can just drop the flush_scheduled_work() entirely, and
then move the tty_ldisc_halt() call to inside the mutex. That way we
never expose the partially torn down ldisc state to tty_open(), and hold
the ldisc_mutex over the whole sequence.Reported-by: Ingo Molnar
Reported-by: Heinz Diehl
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds -
This patch fixes the m32r SMP kernel after 2.6.27.
A part of the following patch breaks m32r SMP operation.
> m32r: convert to generic helpers for IPI function calls
> commit 7b7426c8a615cf61df9a77b9df7d5b75d91e3fa0In the above patch, a CALL_FUNC_SINGLE_IPI was newly introduced,
but the its IPI vector number was wrong in the patch code.The m32r SMP kernel hanged-up during boot operation, because
the CPU_BOOT_IPI was called instead of CALL_FUNC_SINGLE_IPI
(CPU_BOOT_IPI had no side effect at that time because the 2nd
core had already been started up),
as a result, csd_unlock() was not called, then a dead lock
occurred in csd_lock_wait() after the detection of Compact Flash
memory as IDE generic disk.Signed-off-by: Toshihiro HANAWA
Signed-off-by: Hirokazu Takata -
In case CONFIG_DISCONTIGMEM is set, the memory size of system was
always determined by CONFIG_MEMORY_SIZE and was not changeable.This patch fixes set_memory() of arch/m32r/mm/discontig.c so that
we can specify memory size by the "mem=" kernel parameter.Signed-off-by: Hirokazu Takata
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Add a spinlock variable "rtc_lock".
This is taken from arch/arm/kernel/time.c.Signed-off-by: Hirokazu Takata
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Define ioread* and iowrite* macros to fix the following build errors:
CC [M] drivers/uio/uio_smx.o
drivers/uio/uio_smx.c: In function 'smx_handler':
drivers/uio/uio_smx.c:31: error: implicit declaration of function 'ioread32'
drivers/uio/uio_smx.c:37: error: implicit declaration of function 'iowrite32'Signed-off-by: Hirokazu Takata
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- Move EXPORT_SYMBOL lines of delay loop functions
from arch/m32r/kernel/m32r_ksyms.c to arch/m32r/lib/delay.c.
- Export __ndelay.Signed-off-by: Hirokazu Takata
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Fix pmd_bad check code of tme_handler (TLB Miss Exception handler).
The correct _KERNPG_TABLE value is not 0x263(=611) but 0x163.Signed-off-by: Hirokazu Takata
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* 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (21 commits)
ALSA: usb - Use strlcat() correctly
ALSA: Fix invalid __exit in sound/mips/*.c
ALSA: hda - Fix / improve ALC66x parser
ALSA: ctxfi: Swapped SURROUND-SIDE mute
sound: Make keywest_driver static
ALSA: intel8x0 - Mute External Amplifier by default for Sony VAIO VGN-B1VP
ALSA: hda - Fix digita/analog mic auto-switching with IDT codecs
ASoC: fix kconfig order of Blackfin drivers
ALSA: hda - Added quirk to enable sound on Toshiba NB200
ASoC: Fix dependency of CONFIG_SND_PXA2XX_SOC_IMOTE2
ALSA: Don't assume i2c device probing always succeeds
ALSA: intel8x0 - Mute External Amplifier by default for Sony VAIO VGN-T350P
ALSA: echoaudio - Re-enable the line-out control for the Mia card
ALSA: hda - Resurrect input-source mixer of ALC268 model=acer
ALSA: hda - Analog Devices AD1984A add HP Touchsmart model
ALSA: hda - Add HP Pavilion dv4t-1300 to MSI whitelist
ALSA: hda - CD-audio sound for hda-intel conexant benq laptop
ASoC: DaVinci: Correct McASP FIFO initialization
ASoC: Davinci: Fix race with cpu_dai->dma_data
ASoC: DaVinci: Fix divide by zero error during 1st execution
... -
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
[PATCH] ext4: retry failed direct IO allocations
ext4: Fix build warning in ext4_dirty_inode()
ext4: drop ext4dev compat
ext4: fix a BUG_ON crash by checking that page has buffers attached to it
03 Oct, 2009
18 commits
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On a 256M filesystem, doing this in a loop:
xfs_io -F -f -d -c 'pwrite 0 64m' test
rm -f testeventually leads to ENOSPC. (the xfs_io command does a
64m direct IO write to the file "test")As with other block allocation callers, it looks like we need to
potentially retry the allocations on the initial ENOSPC.Signed-off-by: Eric Sandeen
Signed-off-by: "Theodore Ts'o" -
This fixes the following warning:
fs/ext4/inode.c: In function 'ext4_dirty_inode':
fs/ext4/inode.c:5615: warning: unused variable 'current_handle'We remove the jbd_debug() statement which does use current_handle, as
it's not terribly important in the grand scheme of things.Thanks to Stephen Rothwell for pointing this out.
Signed-off-by: Curt Wohlgemuth
Signed-off-by: "Theodore Ts'o" -
* master.kernel.org:/home/rmk/linux-2.6-arm: (25 commits)
ARM: 5728/1: Proper prefetch abort handling on ARMv6 and ARMv7
ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()
ARM: 5740/1: fix valid_phys_addr_range() range check
ARM: 5739/1: ARM: allow empty ATAG_CORE
ARM: 5735/1: sa1111: CodingStyle cleanups
ARM: 5738/1: Correct TCM documentation
ARM: 5734/1: arm: fix compilation of entry-common.S for older CPUs
ARM: 5733/1: fix bcmring compile error
ARM: 5732/1: remove redundant include file
ARM: 5731/2: Fix U300 generic GPIO, remove ifdefs from MMCI v3
ARM: Ensure do_cache_op takes mmap_sem
ARM: Fix __cpuexit section mismatch warnings
ARM: Don't allow highmem on SMP platforms without h/w TLB ops broadcast
ARM: includecheck fix: mach-davinci, board-dm365-evm.c
ARM: Remove unused CONFIG SA1100_H3XXX
ARM: Fix warning: unused variable 'highmem'
ARM: Fix warning: #warning syscall migrate_pages not implemented
ARM: Fix SA11x0 clocksource warning
ARM: Fix SA1100 Neponset serial section mismatch
ARM: Fix SA1100 Assabet/Neponset PCMCIA section mismatch warnings
... -
Currently, on ARMv6 and ARMv7, if an application tries to execute
code (or garbage) on non-executable page it hangs. It caused by
incorrect prefetch abort handling. Now every prefetch abort
processes as a translation fault.To fix this we have to analyze instruction fault status register
to figure out reason why we've got the abort and process it
accordingly.To make IFSR different from DFSR we set bit 31 which is reserved in
both IFSR and DFSR.This patch also tries to protect from future hangs on unexpected
exceptions. An application will be killed if unexpected exception
type was received.Signed-off-by: Kirill A. Shutemov
Signed-off-by: Russell King -
Instruction fault status register, IFSR, was introduced on ARMv6 to
provide status information about the last insturction fault. It
needed for proper prefetch abort handling.Now we have three prefetch abort model:
* legacy - for CPUs before ARMv6. They doesn't provide neither
IFSR nor IFAR. We simulate IFSR with section translation fault
status for them to generalize code;
* ARMv6 - provides IFSR, but not IFAR;
* ARMv7 - provides both IFSR and IFAR.Signed-off-by: Kirill A. Shutemov
Signed-off-by: Russell King -
Commit 1522ac3ec95ff0230e7aa516f86b674fdf72866c
("Fix virtual to physical translation macro corner cases")
breaks the end of memory check in valid_phys_addr_range().
The modified expression results in the apparent /dev/mem size
being 2 bytes smaller than what it actually is.This patch reworks the expression to correctly check the address,
while maintaining use of a valid address to __pa().Signed-off-by: Greg Ungerer
Signed-off-by: Russell King -
From: David Brown
The ATAG_CORE is allowed to be empty. Although this is handled
by parse_tag_core(), __vet_atags during startup rejects this tag
unless it contains data. Allow the initial tag to be either the
full size, or empty.Signed-off-by: David Brown
Signed-off-by: Russell King -
EXPORT_* macros should follow immediately after the closing function
brace line.Signed-off-by: H Hartley Sweeten
Acked-by: Kristoffer Ericson
Signed-off-by: Russell King -
Conflicts:
MAINTAINERS -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (46 commits)
cnic: Fix NETDEV_UP event processing.
uvesafb/connector: Disallow unpliviged users to send netlink packets
pohmelfs/connector: Disallow unpliviged users to configure pohmelfs
dst/connector: Disallow unpliviged users to configure dst
dm/connector: Only process connector packages from privileged processes
connector: Removed the destruct_data callback since it is always kfree_skb()
connector/dm: Fixed a compilation warning
connector: Provide the sender's credentials to the callback
connector: Keep the skb in cn_callback_data
e1000e/igb/ixgbe: Don't report an error if devices don't support AER
net: Fix wrong sizeof
net: splice() from tcp to pipe should take into account O_NONBLOCK
net: Use sk_mark for routing lookup in more places
sky2: irqname based on pci address
skge: use unique IRQ name
IPv4 TCP fails to send window scale option when window scale is zero
net/ipv4/tcp.c: fix min() type mismatch warning
Kconfig: STRIP: Remove stale bits of STRIP help text
NET: mkiss: Fix typo
tg3: Remove prev_vlan_tag from struct tx_ring_info
... -
This fixes the problem of not handling the NETDEV_UP event properly
during hot-plug or modprobe of bnx2 after cnic. The handling was
skipped by mistakenly using "else if" to check for the event.Also update version to 2.0.1.
Signed-off-by: Michael Chan
Signed-off-by: Benjamin Li
Signed-off-by: David S. Miller -
Signed-off-by: Philipp Reisner
Signed-off-by: David S. Miller -
Signed-off-by: Philipp Reisner
Signed-off-by: David S. Miller -
Signed-off-by: Philipp Reisner
Signed-off-by: David S. Miller -
Signed-off-by: Philipp Reisner
Signed-off-by: David S. Miller -
Signed-off-by: Philipp Reisner
Acked-by: Lars Ellenberg
Acked-by: Evgeniy Polyakov
Signed-off-by: David S. Miller -
Signed-off-by: Philipp Reisner
Acked-by: Lars Ellenberg
Acked-by: Evgeniy Polyakov
Signed-off-by: David S. Miller -
Signed-off-by: Philipp Reisner
Acked-by: Lars Ellenberg
Acked-by: Evgeniy Polyakov
Signed-off-by: David S. Miller
