MdePkg/BaseSynchronizationLib: Add volatile Interlocked*() APIs

[mirror_edk2.git] / MdePkg / Library / BaseSynchronizationLib / X64 / InterlockedDecrement.c

diff --git a/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedDecrement.c b/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedDecrement.c
index 65faf014e995560d714b29aeb07185cf1a6cd0f0..da402cd4c67f792c17ed914722c552e8a240f892 100644 (file)
--- a/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedDecrement.c
+++ b/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedDecrement.c
@@ -1,7 +1,7 @@
 /** @file\r
   InterlockedDecrement function\r
 \r
-  Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>\r
   This program and the accompanying materials\r
   are licensed and made available under the terms and conditions of the BSD License\r
   which accompanies this distribution.  The full text of the license may be found at\r
@@ -38,9 +38,9 @@ long _InterlockedDecrement(
 UINT32\r
 EFIAPI\r
 InternalSyncDecrement (\r
-  IN      UINT32                    *Value\r
+  IN      volatile UINT32           *Value\r
   )\r
 {\r
-  return _InterlockedDecrement (Value);\r
+  return _InterlockedDecrement ((long *)(UINTN)(Value));\r
 }\r
 \r