Refine code to make code run more safely.

Signed-off-by:ydong10
Reviewed-by:rsun3

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12250 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/EdkCompatibilityPkg/Foundation/Include/EfiStdArg.h b/EdkCompatibilityPkg/Foundation/Include/EfiStdArg.h
index 5697371b8abb312fce26e3ed29a9838ec97480ab..94b93ea4d17bc127ac91cbc0a34376c1b332d025 100644 (file)
--- a/EdkCompatibilityPkg/Foundation/Include/EfiStdArg.h
+++ b/EdkCompatibilityPkg/Foundation/Include/EfiStdArg.h
@@ -137,7 +137,7 @@ typedef CHAR8 *VA_LIST;
   @return  A pointer to the beginning of a variable argument list.\r
 \r
 **/\r
-#define VA_START(Marker, Parameter) (Marker = (VA_LIST) & (Parameter) + _INT_SIZE_OF (Parameter))\r
+#define VA_START(Marker, Parameter) (Marker = (VA_LIST) ((UINTN) & (Parameter) + _INT_SIZE_OF (Parameter)))\r
 \r
 /**\r
   Returns an argument of a specified type from a variable argument list and updates \r