If the source entity does not contain any pads, do not create a link.
Reported-by: syzbot <[email protected]>
Signed-off-by: Ricardo Ribalda <[email protected]>
---
drivers/media/usb/uvc/uvc_entity.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/uvc/uvc_entity.c b/drivers/media/usb/uvc/uvc_entity.c
index 7c4d2f93d351..1f730cb72e58 100644
--- a/drivers/media/usb/uvc/uvc_entity.c
+++ b/drivers/media/usb/uvc/uvc_entity.c
@@ -43,7 +43,7 @@ static int uvc_mc_create_links(struct uvc_video_chain *chain,
source = (UVC_ENTITY_TYPE(remote) == UVC_TT_STREAMING)
? (remote->vdev ? &remote->vdev->entity : NULL)
: &remote->subdev.entity;
- if (source == NULL)
+ if (source == NULL || source->num_pads == 0)
continue;
remote_pad = remote->num_pads - 1;
--
2.35.1.1021.g381101b075-goog