pty: quickfix for the pty ENXIO timing problems

This also makes close stall in the normal case which is apparently
needed to fix emacs

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index 6e6942c45f5b..3850a68f265a 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -52,6 +52,7 @@ static void pty_close(struct tty_struct *tty, struct file *filp)
                 return;
         tty->link->packet = 0;
         set_bit(TTY_OTHER_CLOSED, &tty->link->flags);
+        tty_flip_buffer_push(tty->link);
         wake_up_interruptible(&tty->link->read_wait);
         wake_up_interruptible(&tty->link->write_wait);
         if (tty->driver->subtype == PTY_TYPE_MASTER) {
@@ -207,6 +208,7 @@ static int pty_open(struct tty_struct *tty, struct file *filp)
         clear_bit(TTY_OTHER_CLOSED, &tty->link->flags);
         set_bit(TTY_THROTTLED, &tty->flags);
         retval = 0;
+        tty->low_latency = 1;
 out:
         return retval;
 }