linux-kernel - [09/24] NET: slip, fix ldisc->open retval

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Message-Id: <20110519183126.506284585@clark.kroah.org>
Date:	Thu, 19 May 2011 11:30:41 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Oliver Hartkopp <socketcan@...tkopp.net>,
	Alan Cox <alan@...ux.intel.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [09/24] NET: slip, fix ldisc->open retval

2.6.33-longterm review patch.  If anyone has any objections, please let us know.

------------------
Content-Length: 875
Lines: 30

From: Matvejchikov Ilya <matvejchikov@...il.com>

commit 057bef938896e6266ae24ec4266d24792d27c29a upstream.

TTY layer expects 0 if the ldisc->open operation succeeded.

Signed-off-by : Matvejchikov Ilya <matvejchikov@...il.com>
Acked-by: Oliver Hartkopp <socketcan@...tkopp.net>
Acked-by: Alan Cox <alan@...ux.intel.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/net/slip.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/net/slip.c
+++ b/drivers/net/slip.c
@@ -851,7 +851,9 @@ static int slip_open(struct tty_struct *
 	/* Done.  We have linked the TTY line to a channel. */
 	rtnl_unlock();
 	tty->receive_room = 65536;	/* We don't flow control */
-	return sl->dev->base_addr;
+
+	/* TTY layer expects 0 on success */
+	return 0;
 
 err_free_bufs:
 	sl_free_bufs(sl);


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