+/**
+ * tipc_disconnect_port - disconnect port from peer
+ *
+ * Port must be locked.
+ */
+
+int tipc_disconnect_port(struct tipc_port *tp_ptr)
+{
+ int res;
+
+ if (tp_ptr->connected) {
+ tp_ptr->connected = 0;
+ /* let timer expire on it's own to avoid deadlock! */
+ tipc_nodesub_unsubscribe(
+ &((struct port *)tp_ptr)->subscription);
+ res = TIPC_OK;
+ } else {
+ res = -ENOTCONN;
+ }
+ return res;
+}
+