From 03e772c322f7364c4721e1bb4eb041ddb0d319e9 Mon Sep 17 00:00:00 2001
From: vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Sat, 8 Jul 2006 15:21:04 +0000
Subject: [PATCH] In AsciiStrncmp(), if length=0, should return 0

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@840 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdePkg/Library/BaseLib/String.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/MdePkg/Library/BaseLib/String.c b/MdePkg/Library/BaseLib/String.c
index 80223c6732..a59a9d08cb 100644
--- a/MdePkg/Library/BaseLib/String.c
+++ b/MdePkg/Library/BaseLib/String.c
@@ -713,6 +713,10 @@ AsciiStrnCmp (
   IN      UINTN                     Length
   )
 {
+  if (Length == 0) {
+    return 0;
+  }
+
   //
   // ASSERT both strings are less long than PcdMaximumAsciiStringLength
   //
-- 
2.39.2