diff --git a/[refs] b/[refs]
index fbfcf974034f..23c3f1ed4fc9 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7342c59a44ad9e5f30baaa2de84830f40b9f06c0
+refs/heads/master: 81c79838ca24f48e0e4bb96502d131d6af758ae0
diff --git a/trunk/drivers/tty/pty.c b/trunk/drivers/tty/pty.c
index 0ce0b3ec2bb0..a541ec875932 100644
--- a/trunk/drivers/tty/pty.c
+++ b/trunk/drivers/tty/pty.c
@@ -408,7 +408,7 @@ static void pty_unix98_shutdown(struct tty_struct *tty)
 static void pty_cleanup(struct tty_struct *tty)
 {
 	tty->port->itty = NULL;
-	kfree(tty->port);
+	tty_port_put(tty->port);
 }
 
 /* Traditional BSD devices */
diff --git a/trunk/drivers/tty/tty_port.c b/trunk/drivers/tty/tty_port.c
index 416b42f7c346..fdc42c2d565f 100644
--- a/trunk/drivers/tty/tty_port.c
+++ b/trunk/drivers/tty/tty_port.c
@@ -128,7 +128,7 @@ static void tty_port_destructor(struct kref *kref)
 	if (port->xmit_buf)
 		free_page((unsigned long)port->xmit_buf);
 	tty_buffer_free_all(port);
-	if (port->ops->destruct)
+	if (port->ops && port->ops->destruct)
 		port->ops->destruct(port);
 	else
 		kfree(port);