Commit 1bb95415 authored Nov 05, 2014 by Peter Hurley Committed by Greg Kroah-Hartman Nov 05, 2014

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: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg 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);
		}
		}