Change media_entity_pipeline_stop() to not decrement
stream_count of an inactive media pipeline. Doing so,
results in preventing starting the pipeline.
Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
---
drivers/media/media-entity.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c
index e89d85a..f2e4360 100644
--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -452,9 +452,12 @@ error:
media_entity_graph_walk_start(graph, entity_err);
while ((entity_err = media_entity_graph_walk_next(graph))) {
- entity_err->stream_count--;
- if (entity_err->stream_count == 0)
- entity_err->pipe = NULL;
+ /* don't let the stream_count go negative */
+ if (entity->stream_count > 0) {
+ entity_err->stream_count--;
+ if (entity_err->stream_count == 0)
+ entity_err->pipe = NULL;
+ }
/*
* We haven't increased stream_count further than this
@@ -486,9 +489,12 @@ void media_entity_pipeline_stop(struct media_entity *entity)
media_entity_graph_walk_start(graph, entity);
while ((entity = media_entity_graph_walk_next(graph))) {
- entity->stream_count--;
- if (entity->stream_count == 0)
- entity->pipe = NULL;
+ /* don't let the stream_count go negative */
+ if (entity->stream_count > 0) {
+ entity->stream_count--;
+ if (entity->stream_count == 0)
+ entity->pipe = NULL;
+ }
}
if (!--pipe->streaming_count)
--
2.5.0
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