From 7fd58cbc7e0eb861255ffd691d4ffacbaff94e89 Mon Sep 17 00:00:00 2001
From: mdkinney <mdkinney@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 1 Aug 2008 23:21:07 +0000
Subject: Use ReadUnaligned32() instead of CopyMem()

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5604 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c   | 10 +++++-----
 MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf |  1 +
 2 files changed, 6 insertions(+), 5 deletions(-)

(limited to 'MdePkg/Library/BaseUefiDecompressLib')

diff --git a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c
index feba9fdd6d..ea9f5071ea 100644
--- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c
+++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c
@@ -16,6 +16,7 @@
 #include <Base.h>
 
 
+#include <Library/BaseLib.h>
 #include <Library/UefiDecompressLib.h>
 #include <Library/DebugLib.h>
 #include <Library/BaseMemoryLib.h>
@@ -689,19 +690,18 @@ UefiDecompressGetInfo (
   ASSERT (DestinationSize != NULL);
   ASSERT (ScratchSize != NULL);
 
-  *ScratchSize  = sizeof (SCRATCH_DATA);
-
   if (SourceSize < 8) {
     return RETURN_INVALID_PARAMETER;
   }
 
-  CopyMem (&CompressedSize, Source, sizeof (UINT32));
-  CopyMem (DestinationSize, (VOID *)((UINT8 *)Source + 4), sizeof (UINT32));
-
+  CompressedSize   = ReadUnaligned32 ((UINT32 *)Source);
   if (SourceSize < (CompressedSize + 8)) {
     return RETURN_INVALID_PARAMETER;
   }
 
+  *ScratchSize  = sizeof (SCRATCH_DATA);
+  *DestinationSize = ReadUnaligned32 ((UINT32 *)Source + 1);
+
   return RETURN_SUCCESS;
 }
 
diff --git a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf
index f017d24454..3e7305095b 100644
--- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf
+++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf
@@ -39,6 +39,7 @@
 
 
 [LibraryClasses]
+  BaseLib
   BaseMemoryLib
   DebugLib
 
-- 
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