From 5608784fdf417467cbb2ccfb1129500464416f79 Mon Sep 17 00:00:00 2001
From: Eugene Teo <eugeneteo@kernel.sg>
Date: Wed, 30 Jul 2008 12:38:59 -0700
Subject: [PATCH] hamradio: add missing sanity check to tty operation

Add missing sanity check to tty operation.

Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Eugene Teo <eteo@redhat.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 drivers/net/hamradio/mkiss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 3249df5..b8e25c4 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -548,7 +548,7 @@ static int ax_xmit(struct sk_buff *skb, struct net_device *dev)
 		}
 
 		printk(KERN_ERR "mkiss: %s: transmit timed out, %s?\n", dev->name,
-		       (ax->tty->ops->chars_in_buffer(ax->tty) || ax->xleft) ?
+		       (tty_chars_in_buffer(ax->tty) || ax->xleft) ?
 		       "bad line quality" : "driver error");
 
 		ax->xleft = 0;
-- 
2.7.4