media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF

commit 3ee6d04071 upstream.

The result of the VIDIOC_PREPARE_BUF ioctl was never copied back
to userspace since it was missing in the switch.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
This commit is contained in:
Hans Verkuil 2018-02-14 12:59:28 +01:00 • committed by Ben Hutchings
commit 182f3143bc