Revert "TTY: pty, remove superfluous ptm test"



This reverts commit a50f724a.

Sasha reported that this causes problems, so revert it.

Cc: Alan Cox <alan@linux.intel.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 0ef1698e

drivers/tty/pty.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -54,7 +54,10 @@ static void pty_close(struct tty_struct tty, struct file filp)
		wake_up_interruptible(&tty->link->write_wait);
		if (tty->driver->subtype == PTY_TYPE_MASTER) {
		set_bit(TTY_OTHER_CLOSED, &tty->flags);
		#ifdef CONFIG_UNIX98_PTYS
		if (tty->driver == ptm_driver)
		devpts_pty_kill(tty->link);
		#endif
		tty_unlock();
		tty_vhangup(tty->link);
		tty_lock();