From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Mon, 12 May 2008 11:29:25 +0000 (+0100)
Subject: strip: Fix termios assumption
X-Git-Tag: v2.6.26-rc3~136
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=79f999d0aa264f72f5491be14b4bf60137a3d3a9;p=linux-2.6-omap-h63xx.git

strip: Fix termios assumption

Strip assumes that the tty drivers always have a set_termios method which
may not be true. Check this when binding to the tty so that we don't oops
later.

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

diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c
index 5dd23c93497..883af891ebf 100644
--- a/drivers/net/wireless/strip.c
+++ b/drivers/net/wireless/strip.c
@@ -2611,7 +2611,7 @@ static int strip_open(struct tty_struct *tty)
 	 * We need a write method.
 	 */
 
-	if (tty->ops->write == NULL)
+	if (tty->ops->write == NULL || tty->ops->set_termios == NULL)
 		return -EOPNOTSUPP;
 
 	/*