diff --git a/[refs] b/[refs]
index 06ceefec79bd..e1e320626695 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7dc9b48fc5b9641d4b2a222825e5be64ebb27356
+refs/heads/master: cb4bca3540535a15705b50bdaea4fe2fddd183b3
diff --git a/trunk/drivers/char/tty_port.c b/trunk/drivers/char/tty_port.c
index 553b0e9d8d17..c8f8024cb40e 100644
--- a/trunk/drivers/char/tty_port.c
+++ b/trunk/drivers/char/tty_port.c
@@ -90,7 +90,7 @@ void tty_port_tty_set(struct tty_port *port, struct tty_struct *tty)
 	spin_lock_irqsave(&port->lock, flags);
 	if (port->tty)
 		tty_kref_put(port->tty);
-	port->tty = tty;
+	port->tty = tty_kref_get(tty);
 	spin_unlock_irqrestore(&port->lock, flags);
 }
 EXPORT_SYMBOL(tty_port_tty_set);