From: Paulo Alcantara <pcacjr@zytor.com>
Date: Wed, 13 Sep 2017 04:44:54 +0000 (+0800)
Subject: MdeModulePkg/UdfDxe: Remove negative comparison of unsigned number
X-Git-Tag: edk2-stable201903~3423
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=35aec96c221b643b26e78305f6acda8ab0647cf3

MdeModulePkg/UdfDxe: Remove negative comparison of unsigned number

This patch gets rid of a negative comparison of an UINT64 type (Offset)
as it'll never evaluate to true.

Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Reported-by: Star Zeng <star.zeng@intel.com>
Signed-off-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
---

diff --git a/MdeModulePkg/Universal/Disk/UdfDxe/FileSystemOperations.c b/MdeModulePkg/Universal/Disk/UdfDxe/FileSystemOperations.c
index 7286265373..2039f80289 100644
--- a/MdeModulePkg/Universal/Disk/UdfDxe/FileSystemOperations.c
+++ b/MdeModulePkg/Universal/Disk/UdfDxe/FileSystemOperations.c
@@ -1082,9 +1082,6 @@ ReadFile (
 
         if (FilePosition + ExtentLength > ReadFileInfo->FilePosition) {
           Offset = ReadFileInfo->FilePosition - FilePosition;
-          if (Offset < 0) {
-            Offset = -(Offset);
-          }
         } else {
           Offset = 0;
         }