tty_ldisc: remove unnecessary negative return check for wait_event_timeout

wait_event_timeout always return value >= 0
remove the unnecessary ret < 0 check

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 512c49f98e85a2c59e70b2c454877589756376a2..5201f78d39a6812cde9aced8a14bd3a5f6820898 100644 (file)
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -556,8 +556,6 @@ static int tty_ldisc_wait_idle(struct tty_struct *tty)
        int ret;
        ret = wait_event_timeout(tty_ldisc_idle,
                        atomic_read(&tty->ldisc->users) == 1, 5 * HZ);
-       if (ret < 0)
-               return ret;
        return ret > 0 ? 0 : -EBUSY;
 }