linux-toradex.git, branch v2.6.27.14

Linux 2.6.27.14

2009-02-02T17:10:35+00:00

relay: fix lock imbalance in relay_late_setup_files

2009-02-02T16:28:16+00:00

commit b786c6a98ef6fa81114ba7b9fbfc0d67060775e3 upstream.

One fail path in relay_late_setup_files() omits
mutex_unlock(&relay_channels_mutex);
Add it.

Signed-off-by: Jiri Slaby 
Signed-off-by: Ingo Molnar 
Signed-off-by: Greg Kroah-Hartman

PCI hotplug: fix lock imbalance in pciehp

2009-02-02T16:28:16+00:00

commit c2fdd36b550659f5ac2240d1f5a83ffa1a092289 upstream.

set_lock_status omits mutex_unlock in fail path. Add the omitted
unlock.

As a result a lockup caused by this can be triggered from userspace
by writing 1 to /sys/bus/pci/slots/.../lock often enough.

Signed-off-by: Jiri Slaby 
Reviewed-by: Kenji Kaneshige 
Signed-off-by: Jesse Barnes 
Signed-off-by: Greg Kroah-Hartman

rtl8187: Fix error in setting OFDM power settings for RTL8187L

2009-02-02T16:28:15+00:00

commit eb83bbf57429ab80f49b413e3e44d3b19c3fdc5a upstream.

After reports of poor performance, a review of the latest vendor driver
(rtl8187_linux_26.1025.0328.2007) for RTL8187L devices was undertaken.

A difference was found in the code used to index the OFDM power tables. When
the Linux driver was changed, my unit works at a much greater range than
before. I think this fixes Bugzilla #12380 and has been tested by at least
two other users.

Signed-off-by: Larry Finger 
Tested-by: Martín Ernesto Barreyro 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

sound: virtuoso: do not overwrite EEPROM on Xonar D2/D2X

2009-02-02T16:28:15+00:00

commit 7e86c0e6850504ec9516b953f316a47277825e33 upstream.

On the Asus Xonar D2 and D2X models, the SPI chip select signal for the
fourth DAC shares its pin with the serial clock for the EEPROM that
contains the PCI subdevice ID values.  It appears that when DAC
registers are written and some other unknown conditions occur (probably
noise on the EEPROM's chip select line), the EEPROM gets overwritten
with garbage, which makes it impossible to properly detect the card
later.

Therefore, we better avoid DAC register writes and make sure that the
driver works with the DAC's registers' default values.  Consequently,
the sample format is now I2S instead of left-justified (no user-visible
change), and the DAC's volume/mute registers cannot be used anymore
(volume changes are now done by the software volume plugin).

Signed-off-by: Clemens Ladisch 
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

sgi-xpc: Remove NULL pointer dereference.

2009-02-02T16:28:14+00:00

commit 17e2161654da4e6bdfd8d53d4f52e820ee93f423 upstream.

If the bte copy fails, the attempt to retrieve payloads merely returns a
null pointer deref and not NULL as was expected.

Signed-off-by: Robin Holt 
Signed-off-by: Dean Nelson 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

sgi-xpc: ensure flags are updated before bte_copy

2009-02-02T16:28:14+00:00

commit 69b3bb65fa97a1e8563518dbbc35cd57beefb2d4 upstream.

The clearing of the msg->flags needs a barrier between it and the notify
of the channel threads that the messages are cleaned and ready for use.

Signed-off-by: Robin Holt 
Signed-off-by: Dean Nelson 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

include/linux: Add bsg.h to the Kernel exported headers

2009-02-02T16:28:13+00:00

commit a229fc61ef0ee3c30fd193beee0eeb87410227f1 upstream.

bsg.h in current form is perfectly suitable for user-mode
consumption. It is needed together with scsi/sg.h for applications
that want to interface with the bsg driver.

Currently the few projects that use it would copy it over into
the projects. But that is not acceptable for projects that need
to provide source and devel packages for distros.

This should also be submitted to stable 2.6.28 and 2.6.27 since bsg had
a stable API since these Kernels and distro users will need the header
for these kernels a swell

Signed-off-by: Boaz Harrosh 
Acked-by: FUJITA Tomonori 
Signed-off-by: Jens Axboe 
Signed-off-by: Greg Kroah-Hartman

ext3: Add sanity check to make_indexed_dir

2009-02-02T16:28:13+00:00

commit a21102b55c4f8dfd3adb4a15a34cd62237b46039 upstream.

Make sure the rec_len field in the '..' entry is sane, lest we overrun
the directory block and cause a kernel oops on a purposefully
corrupted filesystem.

This fixes a bug related to a bug originally reported by Sami Liedes
for ext4 at:

http://bugzilla.kernel.org/show_bug.cgi?id=12430

Signed-off-by: "Theodore Ts'o" 
Signed-off-by: Greg Kroah-Hartman

epoll: drop max_user_instances and rely only on max_user_watches

2009-02-02T16:28:13+00:00

commit 9df04e1f25effde823a600e755b51475d438f56b upstream.

Linus suggested to put limits where the money is, and max_user_watches
already does that w/out the need of max_user_instances.  That has the
advantage to mitigate the potential DoS while allowing pretty generous
default behavior.

Allowing top 4% of low memory (per user) to be allocated in epoll watches,
we have:

LOMEM    MAX_WATCHES (per user)
512MB    ~178000
1GB      ~356000
2GB      ~712000

A box with 512MB of lomem, will meet some challenge in hitting 180K
watches, socket buffers math teaches us.  No more max_user_instances
limits then.

Signed-off-by: Davide Libenzi 
Cc: Willy Tarreau 
Cc: Michael Kerrisk 
Cc: Bron Gondwana 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman