From 5ca05d9f18dbe4aa15f1417431d371c526be0776 Mon Sep 17 00:00:00 2001 From: Helen Fornazier Date: Fri, 7 Dec 2018 12:56:41 -0500 Subject: [PATCH] media: vimc: fix start stream when link is disabled [ Upstream commit e159b6074c82fe31b79aad672e02fa204dbbc6d8 ] 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 Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/platform/vimc/vimc-common.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/platform/vimc/vimc-common.c b/drivers/media/platform/vimc/vimc-common.c index 743554de724d..a9ab3871ccda 100644 --- a/drivers/media/platform/vimc/vimc-common.c +++ b/drivers/media/platform/vimc/vimc-common.c @@ -241,6 +241,8 @@ 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;