istallion: Use helpers

The ldisc needs to be referenced properly when used. The tty layer has a
helper for this which should have been used but this driver got missed
originally.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index 63d22b5..f9ebcd4 100644 (file)
--- 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);