- do {
-#ifdef TTY_DEBUG_WAIT_UNTIL_SENT
- printk(KERN_DEBUG "waiting %s...(%d)\n", tty_name(tty, buf),
- tty->driver->chars_in_buffer(tty));
-#endif
- set_current_state(TASK_INTERRUPTIBLE);
- if (signal_pending(current))
- goto stop_waiting;
- if (!tty->driver->chars_in_buffer(tty))
- break;
- timeout = schedule_timeout(timeout);
- } while (timeout);
+ if (wait_event_interruptible_timeout(tty->write_wait,
+ !tty->driver->chars_in_buffer(tty), timeout))
+ return;