SecurityPkg/FmpAuthenticationLib: Refine to compare with same type

[mirror_edk2.git] / SecurityPkg / Library / FmpAuthenticationLibPkcs7 / FmpAuthenticationLibPkcs7.c

diff --git a/SecurityPkg/Library/FmpAuthenticationLibPkcs7/FmpAuthenticationLibPkcs7.c b/SecurityPkg/Library/FmpAuthenticationLibPkcs7/FmpAuthenticationLibPkcs7.c
index d79f270900527008da208a8951787d195b7171fb..69c637c7649921b51495165a4748ace7de5665a1 100644 (file)
--- a/SecurityPkg/Library/FmpAuthenticationLibPkcs7/FmpAuthenticationLibPkcs7.c
+++ b/SecurityPkg/Library/FmpAuthenticationLibPkcs7/FmpAuthenticationLibPkcs7.c
@@ -10,7 +10,7 @@
   FmpAuthenticatedHandlerPkcs7(), AuthenticateFmpImage() will receive\r
   untrusted input and do basic validation.\r
 \r
-  Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2016 - 2017, 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
@@ -181,7 +181,7 @@ AuthenticateFmpImage (
     DEBUG((DEBUG_ERROR, "AuthenticateFmpImage - dwLength too small\n"));\r
     return RETURN_INVALID_PARAMETER;\r
   }\r
-  if (Image->AuthInfo.Hdr.dwLength > MAX_UINTN - sizeof(UINT64)) {\r
+  if ((UINTN) Image->AuthInfo.Hdr.dwLength > MAX_UINTN - sizeof(UINT64)) {\r
     DEBUG((DEBUG_ERROR, "AuthenticateFmpImage - dwLength too big\n"));\r
     return RETURN_INVALID_PARAMETER;\r
   }\r