From: Matvejchikov Ilya <matvejchikov@gmail.com>
Date: Fri, 6 May 2011 06:23:09 +0000 (+0000)
Subject: NET: slip, fix ldisc->open retval
X-Git-Tag: firefly_0821_release~10186^2~15
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=23cd96edb58a1b64a97017c1b8ed70c1228a4a25;p=firefly-linux-kernel-4.4.55.git

NET: slip, fix ldisc->open retval

commit 057bef938896e6266ae24ec4266d24792d27c29a upstream.

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

Signed-off-by : Matvejchikov Ilya <matvejchikov@gmail.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/net/slip.c b/drivers/net/slip.c
index fe3cebb984de..9a3088faa47b 100644
--- a/drivers/net/slip.c
+++ b/drivers/net/slip.c
@@ -850,7 +850,9 @@ static int slip_open(struct tty_struct *tty)
 	/* 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);