[media] pwc: Fix locking

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My last locking rework for pwc mistakenly assumed that videbuf2 does its
own locking, but it does not! This patch fixes the missing locking by
moving over the the video_device lock, and introducing a separate lock
for the videobuf2_queue.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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Hans de Goede 2012-05-09 04:43:12 -03:00 • committed by Mauro Carvalho Chehab

parent a67e172214

commit ceede9fa89

3 changed files with 201 additions and 153 deletions

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190

drivers/media/video/pwc/pwc-if.c

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145

drivers/media/video/pwc/pwc-v4l.c

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21

drivers/media/video/pwc/pwc.h

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