media: vimc: fix start stream when link is disabled
diff mbox series

Message ID 20181207175641.1982-1-helen.koike@collabora.com
State New
Headers show
Series
  • media: vimc: fix start stream when link is disabled
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Commit Message

Helen Koike Dec. 7, 2018, 5:56 p.m. UTC
If link is disabled, media_entity_remote_pad returns NULL, causing a
NULL pointer deference.
Ignore links that are not enabled instead.

Signed-off-by: Helen Koike <helen.koike@collabora.com>

---

 drivers/media/platform/vimc/vimc-common.c | 2 ++
 1 file changed, 2 insertions(+)

Patch
diff mbox series

diff --git a/drivers/media/platform/vimc/vimc-common.c b/drivers/media/platform/vimc/vimc-common.c
index dee1b9dfc4f6..867e24dbd6b5 100644
--- a/drivers/media/platform/vimc/vimc-common.c
+++ b/drivers/media/platform/vimc/vimc-common.c
@@ -276,6 +276,8 @@  int vimc_pipeline_s_stream(struct media_entity *ent, int enable)
 
 		/* Start the stream in the subdevice direct connected */
 		pad = media_entity_remote_pad(&ent->pads[i]);
+		if (!pad)
+			continue;
 
 		if (!is_media_entity_v4l2_subdev(pad->entity))
 			return -EINVAL;