From: Helen Koike <helen.koike@collabora.com>
To: linux-media@vger.kernel.org
Cc: hverkuil@xs4all.nl, mchehab@kernel.org,
lkcamp@lists.libreplanetbr.org, kernel@collabora.com,
linux-kernel@vger.kernel.org
Subject: [PATCH] media: vimc: fix start stream when link is disabled
Date: Fri, 7 Dec 2018 15:56:41 -0200 [thread overview]
Message-ID: <20181207175641.1982-1-helen.koike@collabora.com> (raw)
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(+)
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;
--
2.19.1
reply other threads:[~2018-12-07 17:57 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181207175641.1982-1-helen.koike@collabora.com \
--to=helen.koike@collabora.com \
--cc=hverkuil@xs4all.nl \
--cc=kernel@collabora.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=lkcamp@lists.libreplanetbr.org \
--cc=mchehab@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®