NFSv4.x: Fix a refcount leak in nfs_callback_up_net

On error, the callers expect us to return without bumping
nn->cb_users[].

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Cc: stable@vger.kernel.org # v3.7+
This commit is contained in:
Trond Myklebust 2016-08-29 11:15:36 -04:00
commit 98b0f80c23