--- fe3cebb984deb028b8a2e6ac1b1a2e2ac25717a5
+++ 9a3088faa47b37579f68ea9849d37994e0bac0f5
@@ -850,7 +850,9 @@ 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);