linux-toradex.git/drivers/base, branch tegra-10.7.1

Merge commit 'v2.6.32.9' into android-2.6.32

2010-03-11T00:38:33+00:00

class: Free the class private data in class_release

2010-02-23T15:37:57+00:00

commit 18d19c96457d172d913510c083bc7411ed40cb10 upstream.

Fix a memory leak by freeing the memory allocated in __class_register
for the class private data.

Signed-off-by: Laurent Pinchart 
Acked-by: Artem Bityutskiy 
Signed-off-by: Greg Kroah-Hartman

drivers: power: Add watchdog timer to catch drivers which lockup during suspend.

2010-02-08T23:36:01+00:00

	Rather than hard-lock the kernel, we now BUG() when a driver takes
> 3 seconds to suspend. If the underlying platform supports panic dumps,
then the data can be collected for debug.

Signed-off-by: San Mehat

driver-core: fix devtmpfs crash on s390

2010-01-28T23:00:45+00:00

commit f776c5ec4690b21b3668ad5956774a22c86f541a upstream.

On Mon, Jan 18, 2010 at 05:26:20PM +0530, Sachin Sant wrote:
> Hello Heiko,
>
> Today while trying to boot next-20100118 i came across
> the following Oops :
>
> Brought up 4 CPUs
> Unable to handle kernel pointer dereference at virtual kernel address 0000000000
> 543000
> Oops: 0004 #1 SMP
> Modules linked in:
> CPU: 0 Not tainted 2.6.33-rc4-autotest-next-20100118-5-default #1
> Process swapper (pid: 1, task: 00000000fd792038, ksp: 00000000fd797a30)
> Krnl PSW : 0704200180000000 00000000001eb0b8 (shmem_parse_options+0xc0/0x328)
>           R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:2 PM:0 EA:3
> Krnl GPRS: 000000000054388a 000000000000003d 0000000000543836 000000000000003d
>           0000000000000000 0000000000483f28 0000000000536112 00000000fd797d00
>           00000000fd4ba100 0000000000000100 0000000000483978 0000000000543832
>           0000000000000000 0000000000465958 00000000001eb0b0 00000000fd797c58
> Krnl Code: 00000000001eb0aa: c0e5000994f1       brasl   %r14,31da8c
>           00000000001eb0b0: b9020022           ltgr    %r2,%r2
>           00000000001eb0b4: a784010b           brc     8,1eb2ca
>          >00000000001eb0b8: 92002000           mvi     0(%r2),0
>           00000000001eb0bc: a7080000           lhi     %r0,0
>           00000000001eb0c0: 41902001           la      %r9,1(%r2)
>           00000000001eb0c4: b9040016           lgr     %r1,%r6
>           00000000001eb0c8: b904002b           lgr     %r2,%r11
> Call Trace:
> (<00000000fd797c50> 0xfd797c50)
> <00000000001eb5da> shmem_fill_super+0x13a/0x25c
> <0000000000228cfa> get_sb_single+0xbe/0xdc
> <000000000034ffc0> dev_get_sb+0x2c/0x38
> <000000000066c602> devtmpfs_init+0x46/0xc0
> <000000000066c53e> driver_init+0x22/0x60
> <000000000064d40a> kernel_init+0x24e/0x3d0
> <000000000010a7ea> kernel_thread_starter+0x6/0xc
> <000000000010a7e4> kernel_thread_starter+0x0/0xc
>
> I never tried to boot a kernel with DEVTMPFS enabled on a s390 box.
> So am wondering if this is supported or not ? If you think this
> is supported i will send a mail to community on this.

There is nothing arch specific to devtmpfs. This part crashes because the
kernel tries to modify the data read-only section which is write protected
on s390.

Signed-off-by: Heiko Carstens 
Acked-by: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman

Driver-Core: devtmpfs - set root directory mode to 0755

2010-01-28T23:00:44+00:00

commit 03d673e6af6490371aaf64dfe1f84c658c48b71d upstream.

Signed-off-by: Kay Sievers 
Cc: Mark Rosenstand 
Signed-off-by: Greg Kroah-Hartman

Driver core: fix race in dev_driver_string

2009-12-18T22:04:17+00:00

commit 3589972e51fac1e02d0aaa576fa47f568cb94d40 upstream.

This patch (as1310) works around a race in dev_driver_string().  If
the device is unbound while the function is running, dev->driver might
become NULL after we test it and before we dereference it.

Signed-off-by: Alan Stern 
Cc: Oliver Neukum 
Signed-off-by: Greg Kroah-Hartman

PM / Runtime: Fix lockdep warning in __pm_runtime_set_status()

2009-12-18T22:03:10+00:00

commit bab636b921017f0db6e0c2979438f50b898a9808 upstream.

Lockdep complains about taking the parent lock in
__pm_runtime_set_status(), so mark it as nested.

Signed-off-by: Rafael J. Wysocki 
Reported-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

PM: fix irq enable/disable in runtime PM code

2009-11-29T15:51:27+00:00

This patch (as1305) fixes a bug in the irq-enable settings and removes
some related overhead in the runtime PM code.

	In __pm_runtime_resume(), within the scope of the original
	spin_lock_irq(), we know that irqs are disabled.  There's no
	reason to go through a pair of enable/disable cycles when
	acquiring and releasing the parent's lock.

	In __pm_runtime_set_status(), irqs are already disabled when
	the parent's lock is acquired, and they must remain disabled
	when it is released.

Signed-off-by: Alan Stern 
Signed-off-by: Rafael J. Wysocki

PM: Remove some debug messages producing too much noise

2009-11-03T10:18:18+00:00

pm_runtime_idle() is somewhat noisy. Remove debug prints.

Signed-off-by: Pavel Machek 
Signed-off-by: Rafael J. Wysocki

PM: Fix warning on suspend errors

2009-11-03T10:03:33+00:00

Fixes the point where we need to complete the power transition when
device suspend fails, so that we don't print warnings about devices
added to the device hierarchy after a failing suspend.

[rjw: Modified changelog.]

Signed-off-by: Romit Dasgupta 
Signed-off-by: Rafael J. Wysocki