tty: Replace open-coded test with tty_hung_up_p()

tty_hung_up_p() is equivalent to the open-coded test in tty_open().

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 4bd48f7..1262368 100644 (file)
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2129,7 +2129,7 @@ retry_open:
                /*
                 * Need to reset f_op in case a hangup happened.
                 */
-               if (filp->f_op == &hung_up_tty_fops)
+               if (tty_hung_up_p(filp))
                        filp->f_op = &tty_fops;
                goto retry_open;
        }