From: Hao Wu <hao.a.wu@intel.com>
Date: Fri, 6 Jan 2017 07:18:27 +0000 (+0800)
Subject: MdeModulePkg/Stall: Refine to compare 2 values with the same type
X-Git-Tag: edk2-stable201903~4768
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;ds=sidebyside;h=6dee8f78f2ac07d7de99b13630a0aa0613d888de;p=mirror_edk2.git

MdeModulePkg/Stall: Refine to compare 2 values with the same type

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
---

diff --git a/MdeModulePkg/Core/Dxe/Misc/Stall.c b/MdeModulePkg/Core/Dxe/Misc/Stall.c
index 73e90785e2..95a561546f 100644
--- a/MdeModulePkg/Core/Dxe/Misc/Stall.c
+++ b/MdeModulePkg/Core/Dxe/Misc/Stall.c
@@ -1,7 +1,7 @@
 /** @file
   UEFI Miscellaneous boot Services Stall service implementation
 
-Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
 which accompanies this distribution.  The full text of the license may be found at
@@ -67,7 +67,7 @@ CoreStall (
   // Counter = Microseconds * 10 / gMetronome->TickPeriod
   // 0x1999999999999999 = (2^64 - 1) / 10
   //
-  if (Microseconds > 0x1999999999999999ULL) {
+  if ((UINT64) Microseconds > 0x1999999999999999ULL) {
     //
     // Microseconds is too large to multiple by 10 first.  Perform the divide 
     // operation first and loop 10 times to avoid 64-bit math overflow.