- /* The following code is a cut'n'paste of the
- * wait_event_interruptible() macro.
- * We don't us the macro because the condition has
- * side effects : we want to make sure that only one
- * skb get dequeued - Jean II */
- add_wait_queue(sk->sk_sleep, &waitq);
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- skb = skb_dequeue(&sk->sk_receive_queue);
- if (skb != NULL)
- break;
- if (!signal_pending(current)) {
- schedule();
- continue;
- }
- ret = -ERESTARTSYS;
- break;
- }
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &waitq);
- if(ret)
- return -ERESTARTSYS;
+ err = wait_event_interruptible(*(sk->sk_sleep),
+ skb_peek(&sk->sk_receive_queue));
+ if (err)
+ return err;