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V4L/DVB (9973): v4l2-dev: use the release callback from device instea…
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…d of cdev

Instead of relying on the cdev release callback we should rely on the
release callback from the device struct. This requires that we use
get_device/put_device to do proper refcounting. In order to do this
safely v4l2-dev.c now sets up its own file_operations that call
out to the driver's ops.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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hverkuil authored and Mauro Carvalho Chehab committed Dec 30, 2008
1 parent be49e36 commit dc93a70
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