media: cedrus: add action item to the TODO

Mention that the request validation should increment the memory refcount
of reference buffers so we don't forget to do this.
Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/staging/media/sunxi/cedrus/TODO

@@ -5,3 +5,8 @@ Before this stateless decoder driver can leave the staging area:
 * Userspace support for the Request API needs to be reviewed;
 * Another stateless decoder driver should be submitted;
 * At least one stateless encoder driver should be submitted.
+* When queueing a request containing references to I frames, the
+  refcount of the memory for those I frames needs to be incremented
+  and decremented when the request is completed. This will likely
+  require some help from vb2. The driver should fail the request
+  if the memory/buffer is gone.