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 86cbb9ea2f269ee2532078dea529eebdb8cc0a9f..8ec1a9a0bb9ae007c69865b2599f07d3f23c99c8 100644 (file)
--- a/drivers/net/slip.c
+++ b/drivers/net/slip.c
@@ -853,7 +853,9 @@ 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);