V4L/DVB: bt819: cleanup v4l2_subdev_notify() parameters
The 3rd parameter v4l2_subdev_notify() is passed to the notify() callback which is a pointer, see <media/v4l2-subdev.h> and <media/v4l2-device.h>. This will remove the following sparse warning (see "make C=1"): * Using plain integer as NULL pointer Signed-off-by: NMárton Németh <nm127@freemail.hu> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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