Use INTN to case the result of subtract

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8647 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsConsole.c b/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsConsole.c
index b72d8102c024ebfd6ed09db761b1d69291384534..c514bfaa194c01a625a7ef46421581964f22bafb 100644 (file)
--- a/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsConsole.c
+++ b/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsConsole.c
@@ -44,7 +44,7 @@ IsNvNeed (
     Ptr++;\r
   }\r
 \r
-  if ((((UINTN)Ptr - (UINTN)ConVarName) / sizeof (CHAR16)) <= 3) {\r
+  if (((INTN)((UINTN)Ptr - (UINTN)ConVarName) / sizeof (CHAR16)) <= 3) {\r
     return TRUE;\r
   }\r
   \r