diff options
Diffstat (limited to 'drivers/media/platform/vimc/vimc-streamer.c')
| -rw-r--r-- | drivers/media/platform/vimc/vimc-streamer.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/media/platform/vimc/vimc-streamer.c b/drivers/media/platform/vimc/vimc-streamer.c index 048d770e498b..cd6b55433c9e 100644 --- a/drivers/media/platform/vimc/vimc-streamer.c +++ b/drivers/media/platform/vimc/vimc-streamer.c @@ -7,7 +7,6 @@ */ #include <linux/init.h> -#include <linux/module.h> #include <linux/freezer.h> #include <linux/kthread.h> @@ -97,17 +96,26 @@ static int vimc_streamer_pipeline_init(struct vimc_stream *stream, sd = media_entity_to_v4l2_subdev(ved->ent); ret = v4l2_subdev_call(sd, video, s_stream, 1); if (ret && ret != -ENOIOCTLCMD) { - pr_err("subdev_call error %s\n", - ved->ent->name); + dev_err(ved->dev, "subdev_call error %s\n", + ved->ent->name); vimc_streamer_pipeline_terminate(stream); return ret; } } entity = vimc_get_source_entity(ved->ent); - /* Check if the end of the pipeline was reached*/ - if (!entity) + /* Check if the end of the pipeline was reached */ + if (!entity) { + /* the first entity of the pipe should be source only */ + if (!vimc_is_source(ved->ent)) { + dev_err(ved->dev, + "first entity in the pipe '%s' is not a source\n", + ved->ent->name); + vimc_streamer_pipeline_terminate(stream); + return -EPIPE; + } return 0; + } /* Get the next device in the pipeline */ if (is_media_entity_v4l2_subdev(entity)) { @@ -217,4 +225,3 @@ int vimc_streamer_s_stream(struct vimc_stream *stream, return 0; } -EXPORT_SYMBOL_GPL(vimc_streamer_s_stream); |