NLM: Fix a bogus 'return' in nlmclnt_rpc_release

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

fs/lockd/clntproc.c

@@ -244,7 +244,7 @@ void nlm_release_call(struct nlm_rqst *call)
 
 static void nlmclnt_rpc_release(void *data)
 {
-	return nlm_release_call(data);
+	nlm_release_call(data);
 }
 
 static int nlm_wait_on_grace(wait_queue_head_t *queue)