poll_wait(file, &filter->notif->wqh, poll_tab);
- ret = mutex_lock_interruptible(&filter->notify_lock);
- if (ret < 0)
+ if (mutex_lock_interruptible(&filter->notify_lock) < 0)
return EPOLLERR;
list_for_each_entry(cur, &filter->notif->notifications, list) {