tree add2ca56deca15ea064d34966edfa21dcef40fe3
parent 1a17948184a3320e0bb0aab561112211d2e9b7a8
author Hans Verkuil <hans.verkuil@cisco.com> 1393929289 -0300
committer Mauro Carvalho Chehab <m.chehab@samsung.com> 1394531799 -0300

[media] vb2: call buf_finish from __queue_cancel

If a queue was canceled, then the buf_finish op was never called for the
pending buffers. So add this call to queue_cancel. Before calling buf_finish
set the buffer state to PREPARED, which is the correct state. That way the
states DONE and ERROR will only be seen in buf_finish if streaming is in
progress.

Since buf_finish can now be called from non-streaming state we need to
adapt the handful of drivers that actually need to know this.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>