fs: dlm: move dlm allow conn

This patch checks if possible allowing new connections is allowed before
queueing the listen socket to accept new connections.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

fs/dlm/lowcomms.c

@@ -471,6 +471,9 @@ static void lowcomms_data_ready(struct sock *sk)
 
 static void lowcomms_listen_data_ready(struct sock *sk)
 {
+	if (!dlm_allow_conn)
+		return;
+
 	queue_work(recv_workqueue, &listen_con.rwork);
 }
 
@@ -969,10 +972,6 @@ static int accept_from_sock(struct listen_connection *con)
 	struct connection *addcon;
 	unsigned int mark;
 
-	if (!dlm_allow_conn) {
-		return -1;
-	}
-
 	if (!con->sock)
 		return -ENOTCONN;