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

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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>
This commit is contained in:
Hao Wu 2017-01-06 15:18:27 +08:00
parent 4c5ee6a694
commit 6dee8f78f2
1 changed files with 2 additions and 2 deletions
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MdeModulePkg/Core/Dxe/Misc/Stall.c
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@ -1,7 +1,7 @@
/** @file /** @file
UEFI Miscellaneous boot Services Stall service implementation 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 This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License 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 which accompanies this distribution. The full text of the license may be found at
@ -67,7 +67,7 @@ CoreStall (
// Counter = Microseconds * 10 / gMetronome->TickPeriod // Counter = Microseconds * 10 / gMetronome->TickPeriod
// 0x1999999999999999 = (2^64 - 1) / 10 // 0x1999999999999999 = (2^64 - 1) / 10
// //
if (Microseconds > 0x1999999999999999ULL) { if ((UINT64) Microseconds > 0x1999999999999999ULL) {
// //
// Microseconds is too large to multiple by 10 first. Perform the divide // Microseconds is too large to multiple by 10 first. Perform the divide
// operation first and loop 10 times to avoid 64-bit math overflow. // operation first and loop 10 times to avoid 64-bit math overflow.