tree eb4418d39ce759952bf36e5536efbe06e94134a9
parent 31ade3b83e1821da5fbb2f11b5b3d4ab2ec39db8
author Ilya Dryomov <idryomov@gmail.com> 1448648604 +0100
committer Ilya Dryomov <idryomov@gmail.com> 1449235758 +0100

rbd: don't put snap_context twice in rbd_queue_workfn()

Commit 4e752f0ab0e8 ("rbd: access snapshot context and mapping size
safely") moved ceph_get_snap_context() out of rbd_img_request_create()
and into rbd_queue_workfn(), adding a ceph_put_snap_context() to the
error path in rbd_queue_workfn().  However, rbd_img_request_create()
consumes a ref on snapc, so calling ceph_put_snap_context() after
a successful rbd_img_request_create() leads to an extra put.  Fix it.

Cc: stable@vger.kernel.org # 3.18+
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Josh Durgin <jdurgin@redhat.com>