diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index 63d22b5ebc0dd2dbc4aa6b3070c4a7d5b6f09707..f9ebcd41d8e5dd765643a10cc76a5b6a88910638 100644
--- a/drivers/char/istallion.c
+++ b/drivers/char/istallion.c
@@ -925,8 +925,7 @@ static void stli_close(struct tty_struct *tty, struct file *filp)
 	clear_bit(ST_TXBUSY, &portp->state);
 	clear_bit(ST_RXSTOP, &portp->state);
 	set_bit(TTY_IO_ERROR, &tty->flags);
-	if (tty->ldisc.ops->flush_buffer)
-		(tty->ldisc.ops->flush_buffer)(tty);
+	tty_ldisc_flush(tty);
 	set_bit(ST_DOFLUSHRX, &portp->state);
 	stli_flushbuffer(tty);