V4L/DVB (8750): V4L: check inval in video_register_device_index()

Better check the video_device pointer before using it. Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
git-mirror · Oct 12, 2008 · ee7aa9f · ee7aa9f
1 parent ef0e3c2
commit ee7aa9f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
@@ -254,6 +254,9 @@ int video_register_device_index(struct video_device *vfd, int type, int nr,
 	int ret;
 	char *name_base;
 
+	if (vfd == NULL)
+		return -EINVAL;
+
 	if (vfd == NULL)
 		return -EINVAL;