V4L/DVB (8774): cx18: Have CX23418 release buffers at end of capture.

cx18: Have CX23418 release buffers at end of capture.  The CX23418 reuses task
handles so we need to have it release the buffers associated with a task handle
at the end of a capture.  If we don't, buffer ids used for one type of stream
in the driver (MPEG, TS, PCM), could be used for another type of stream by the
CX23418, if a previously used handle is assigned to a different type of stream.
The driver would drop valid buffers when this happened.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/media/video/cx18/cx18-mailbox.c b/drivers/media/video/cx18/cx18-mailbox.c
index 93177514e846..1b9fbf9a6bc5 100644
--- a/drivers/media/video/cx18/cx18-mailbox.c
+++ b/drivers/media/video/cx18/cx18-mailbox.c
@@ -82,6 +82,7 @@ static const struct cx18_api_info api_info[] = {
         API_ENTRY(CPU, CX18_CPU_DE_SET_MDL_ACK,                 0),
         API_ENTRY(CPU, CX18_CPU_DE_SET_MDL,                     API_FAST),
         API_ENTRY(CPU, CX18_APU_RESETAI,                        API_FAST),
+        API_ENTRY(CPU, CX18_CPU_DE_RELEASE_MDL,                 0),
         API_ENTRY(0, 0,                                         0),
 };