[PATCH -next v2 21/26] pty: Don't drop pty master tty lock to hangup slave

[Peter Hurley]

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@xxxxxxxxxxxxxxxxxx>
---
 drivers/tty/pty.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 11db7dc..bee9776 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -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);
 	}
 }
 
-- 
2.1.3

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