diff options
| -rw-r--r-- | linux/drivers/media/video/v4l2-dev.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/linux/drivers/media/video/v4l2-dev.c b/linux/drivers/media/video/v4l2-dev.c index 3b8f33c8d..91849084f 100644 --- a/linux/drivers/media/video/v4l2-dev.c +++ b/linux/drivers/media/video/v4l2-dev.c @@ -194,6 +194,10 @@ static int get_index(struct video_device *vdev, int num) return -EINVAL; } + /* Some drivers do not set the parent. In that case always return 0. */ + if (vdev->parent == NULL) + return 0; + for (i = 0; i < VIDEO_NUM_DEVICES; i++) { if (video_device[i] != NULL && video_device[i] != vdev && |