kernel: rebuild object ref-counting using atomic types

kernel/port.c

@@ -17,7 +17,7 @@ static struct object_type port_type = {
 	},
 };
 
-static kern_status_t port_cleanup(struct object *obj, struct queue *q)
+static kern_status_t port_cleanup(struct object *obj)
 {
 	struct port *port = PORT_CAST(obj);
 	port_disconnect(port);