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linux-next/drivers/media
Andy Walls 7ef5e02553 V4L/DVB (10219): saa7134: Prevent Oops due to stale IRQ status when enabling interrupts
When enabling a shared IRQ line, then saa7134_irq handler could be invoked
before the driver had completely set up internal structures, due to a shared
interrupt line firing.  Clear the saa7134 interrupt status reg, before
requesting the irq line, so that stale IRQ status isn't processed before the
internal structures are set up.

Marcin Slusarz recently brought this Oops to the attention of the v4l-dvb
lists and provided an initial analysis by investigating reports found here:

http://kerneloops.org/guilty.php?guilty=mute_input_7133&version=2.6.27-release&start=1802240&end=1835007&class=oops

Reported-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-01-29 08:35:38 -02:00
..
common V4L/DVB (10182): tda8290: fix TDA8290 + TDA18271 initialization 2009-01-07 22:18:55 -02:00
dvb V4L/DVB (10214): Fix 'stb0899_get_srate' defined but not used warning 2009-01-29 08:35:38 -02:00
radio V4L/DVB (10157): Add USB ID for the Sil4701 radio from DealExtreme 2009-01-02 17:13:56 -02:00
video V4L/DVB (10219): saa7134: Prevent Oops due to stale IRQ status when enabling interrupts 2009-01-29 08:35:38 -02:00
Kconfig V4L/DVB (8392): media/Kconfig: Convert V4L1_COMPAT select into "depends on" 2008-07-20 07:28:49 -03:00
Makefile V4L/DVB (8274): sms1xxx: build cleanup after driver relocation 2008-07-20 07:20:56 -03:00