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authorHelen Fornazier <helen.koike@collabora.com>2018-12-07 20:56:41 +0300
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2018-12-07 21:08:41 +0300
commite159b6074c82fe31b79aad672e02fa204dbbc6d8 (patch)
treec43c57e524650c13fbdaea35103308ff8bcdc211 /drivers/media
parentee494cf377e142f65f202fadf0d859f8e12119fb (diff)
downloadlinux-e159b6074c82fe31b79aad672e02fa204dbbc6d8.tar.xz
media: vimc: fix start stream when link is disabled
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> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/platform/vimc/vimc-common.c2
1 files changed, 2 insertions, 0 deletions
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;