Reviewed-by: Feng Tian <[email protected]>

Thanks
Feng

-----Original Message-----
From: Wu, Hao A 
Sent: Friday, January 6, 2017 4:52 PM
To: [email protected]
Cc: Wu, Hao A <[email protected]>; Tian, Feng <[email protected]>; Zeng, 
Star <[email protected]>; Kinney, Michael D <[email protected]>
Subject: [PATCH] MdeModulePkg/Stall: Refine to compare 2 values with the same 
type

Cc: Feng Tian <[email protected]>
Cc: Star Zeng <[email protected]>
Cc: Michael Kinney <[email protected]>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <[email protected]>
---
 MdeModulePkg/Core/Dxe/Misc/Stall.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Core/Dxe/Misc/Stall.c 
b/MdeModulePkg/Core/Dxe/Misc/Stall.c
index 73e9078..95a5615 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.
--
1.9.5.msysgit.0

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