From db374fdb97f7ffae1eea269d41374976f6c87d65 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@linux.intel.com>
Date: Mon, 14 May 2012 14:51:22 +0100
Subject: [PATCH] --- yaml --- r: 304226 b: refs/heads/master c:
 1e66cded334e6cea596c72f6f650eec351b1e959 h: refs/heads/master v: v3

---
 [refs]                                 | 2 +-
 trunk/drivers/tty/serial/serial_core.c | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index c698e143e3a8..e2d463f1e5db 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1541f845d123a48fbca3cee32b2963b3fb3da83a
+refs/heads/master: 1e66cded334e6cea596c72f6f650eec351b1e959
diff --git a/trunk/drivers/tty/serial/serial_core.c b/trunk/drivers/tty/serial/serial_core.c
index 59fb3ba1e7ca..a21dc8e3b7c0 100644
--- a/trunk/drivers/tty/serial/serial_core.c
+++ b/trunk/drivers/tty/serial/serial_core.c
@@ -2282,6 +2282,7 @@ void uart_unregister_driver(struct uart_driver *drv)
 	tty_unregister_driver(p);
 	put_tty_driver(p);
 	kfree(drv->state);
+	drv->state = NULL;
 	drv->tty_driver = NULL;
 }