From: Henne <henne@nachtwindheim.de>
To: mchehab@infradead.org
Cc: video4linux-list@redhat.com, linux-kernel@vger.kernel.org
Subject: [PATCH] V4L: check inval in video_register_device_index()
Date: Fri, 22 Aug 2008 21:41:03 +0200 [thread overview]
Message-ID: <48AF164F.308@nachtwindheim.de> (raw)
From: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Better check the video_device pointer before using it.
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 6f36006..ef153ff 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -257,6 +257,9 @@ int video_register_device_index(struct video_device *vfd, int type, int nr,
int ret;
char *name_base;
+ if (vfd == NULL)
+ return -EINVAL;
+
switch (type) {
case VFL_TYPE_GRABBER:
base = MINOR_VFL_TYPE_GRABBER_MIN;
reply other threads:[~2008-08-22 19:41 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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