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[media] media: entity: Fix stream count check

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There's a sanity check for the stream count remaining positive or zero on
error path, but instead of performing the check on the traversed entity it
is performed on the entity where traversal ends. Fix this.

Fixes: commit 3801bc7d1b ("[media] media: Media Controller fix to not let stream_count go negative")

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Sakari Ailus 2016-07-20 08:32:49 -03:00 committed by Mauro Carvalho Chehab
parent bcb63314e2
commit 41387a59c8
1 changed files with 1 additions and 1 deletions
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2
drivers/media/media-entity.c
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@ -470,7 +470,7 @@ __must_check int __media_entity_pipeline_start(struct media_entity *entity,
while ((entity_err = media_entity_graph_walk_next(graph))) {
/* don't let the stream_count go negative */
if (entity->stream_count > 0) {
if (entity_err->stream_count > 0) {
entity_err->stream_count--;
if (entity_err->stream_count == 0)
entity_err->pipe = NULL;