Add volatile to modify LockValue in AcquireLockOrFail().

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2006 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdePkg/Library/BaseLib/Synchronization.c b/MdePkg/Library/BaseLib/Synchronization.c
index 503313322424a30c97b24feeba6ba17c72448727..0457f3ab89cf42d5da212ed678aebc2df26630d7 100644 (file)
--- a/MdePkg/Library/BaseLib/Synchronization.c
+++ b/MdePkg/Library/BaseLib/Synchronization.c
@@ -236,7 +236,7 @@ AcquireSpinLockOrFail (
   IN OUT  SPIN_LOCK                 *SpinLock\r
   )\r
 {\r
-  SPIN_LOCK    LockValue;\r
+  volatile SPIN_LOCK    LockValue;\r
 \r
   ASSERT (SpinLock != NULL);\r
 \r