From 49977a6e621fcb90a44d9a223b0a87d5b87d9557 Mon Sep 17 00:00:00 2001
From: Huang Ying <ying.huang@intel.com>
Date: Fri, 15 Aug 2008 00:40:20 -0700
Subject: [PATCH] --- yaml --- r: 108467 b: refs/heads/master c:
 4cd69b986ebf0f8da93f82ffbb89c032ee09c2e1 h: refs/heads/master i:   108465:
 599ab9356d7eedd1fae154c65685ca78abb36221   108463:
 380bbd25fed6c809b953de9737fc0b5ea60446e8 v: v3

---
 [refs]               | 2 +-
 trunk/kernel/kexec.c | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index 6cc9dc10d9e0..5777b2283f70 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ce289e89726948b50a58c9e8f4e81174a8c9c254
+refs/heads/master: 4cd69b986ebf0f8da93f82ffbb89c032ee09c2e1
diff --git a/trunk/kernel/kexec.c b/trunk/kernel/kexec.c
index c8a4370e2a34..cf3797b76786 100644
--- a/trunk/kernel/kexec.c
+++ b/trunk/kernel/kexec.c
@@ -1503,7 +1503,8 @@ int kernel_kexec(void)
 	}
 
  Unlock:
-	xchg(&kexec_lock, 0);
+	if (!xchg(&kexec_lock, 0))
+		BUG();
 
 	return error;
 }