/* Wait for I/O to driver to complete and unregister PPP channel. This is already done by the close routine, so just call that.  */
static int ppp_asynctty_hangup(struct tty_struct *tty)
/* Wait for I/O to driver to complete and unregister PPP channel. This is already done by the close routine, so just call that.  */
static int ppp_asynctty_hangup(struct tty_struct *tty)
{
	ppp_asynctty_close(tty);
	return 0;
}