port_subs_info_init(&new_port->c_dest);
snd_use_lock_use(&new_port->use_lock);
- num = port >= 0 ? port : 0;
+ num = max(port, 0);
mutex_lock(&client->ports_mutex);
write_lock_irq(&client->ports_lock);
list_for_each_entry(p, &client->ports_list_head, list) {