diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2011-09-06 19:16:18 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-25 07:10:15 +0200 |
| commit | 16b2b5c638c12ffc89753ad19edeb9baa6f59b99 (patch) | |
| tree | 8c54ec7eeeebfb32d0b32d43eec156ef53104dc4 | |
| parent | 8dc9342126bbd39181caa83ab437fb22ee25d57d (diff) | |
uvcvideo: Fix crash when linking entities
commit 4d9b2ebd335d83044b9e6656d0e604e8e1300334 upstream.
The uvc_mc_register_entity() function wrongfully selects the
media_entity associated with a UVC entity when creating links. This
results in access to uninitialized media_entity structures and can hit a
BUG_ON statement in media_entity_create_link(). Fix it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/media/video/uvc/uvc_entity.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/uvc/uvc_entity.c b/drivers/media/video/uvc/uvc_entity.c index 48fea373c25..29e239911d0 100644 --- a/drivers/media/video/uvc/uvc_entity.c +++ b/drivers/media/video/uvc/uvc_entity.c @@ -49,7 +49,7 @@ static int uvc_mc_register_entity(struct uvc_video_chain *chain, if (remote == NULL) return -EINVAL; - source = (UVC_ENTITY_TYPE(remote) != UVC_TT_STREAMING) + source = (UVC_ENTITY_TYPE(remote) == UVC_TT_STREAMING) ? (remote->vdev ? &remote->vdev->entity : NULL) : &remote->subdev.entity; if (source == NULL) |