Commit 1bb95415 authored by Peter Hurley's avatar Peter Hurley Committed by Greg Kroah-Hartman
Browse files

pty: Don't drop pty master tty lock to hangup slave 



With the revised tty lock order and lockdep annotation, claiming
the pty slave lock is now safe while still holding the pty master lock.

Signed-off-by: default avatarPeter Hurley <peter@hurleysoftware.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 35af935e

drivers/tty/pty.c

+0 −2
Original line number Diff line number Diff line
@@ -66,9 +66,7 @@ static void pty_close(struct tty_struct *tty, struct file *filp) 
			mutex_unlock(&devpts_mutex);

		}

#endif

		tty_unlock(tty);

		tty_vhangup(tty->link);

		tty_lock(tty);

	}

}