V4L/DVB (13552): v4l: Replace video_is_unregistered with video_is_registered
Replace the video_is_unregistered function by a video_is_registered function. The V4L2_FL_UNREGISTERED flag is replaced by a V4L2_FL_REGISTERED flag. This change makes the video_is_registered function return coherent results when called on an initialize but not yet registered video_device instance. The function can now be used instead of checking video_device::minor. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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