- if (port->gs.tty && port->gs.xmit_cnt <= port->gs.wakeup_chars) {
- if ((port->gs.tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
- port->gs.tty->ldisc.write_wakeup)
- (port->gs.tty->ldisc.write_wakeup)(port->gs.tty);
- wake_up_interruptible(&port->gs.tty->write_wait);
- }