From 0f42527e58792cbcc262573430aeaeca350aa6d4 Mon Sep 17 00:00:00 2001
From: vit9696 <vit9696@users.noreply.github.com>
Date: Tue, 16 Mar 2021 09:45:34 +0300
Subject: [PATCH] OcAcpiLib: Fixed ACPI table magic corruption during patching

---
 Changelog.md                  | 1 +
 Library/OcAcpiLib/OcAcpiLib.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/Changelog.md b/Changelog.md
index 9494e11b..9fa643fc 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -18,6 +18,7 @@ OpenCore Changelog
 - Added TSC frequency reading from Apple Platform Info
 - Added TSC frequency reading for Apple devices with nForce chipsets
 - Added `Base` and `BaseSkip` lookup for ACPI patches
+- Fixed ACPI table magic corruption during patching
 
 #### v0.6.7
 - Fixed ocvalidate return code to be non-zero when issues are found
diff --git a/Library/OcAcpiLib/OcAcpiLib.c b/Library/OcAcpiLib/OcAcpiLib.c
index 927f4b63..63c8145d 100755
--- a/Library/OcAcpiLib/OcAcpiLib.c
+++ b/Library/OcAcpiLib/OcAcpiLib.c
@@ -150,7 +150,7 @@ AcpiReadSignature (
 
   Result = Common->Signature;
 
-  Walker = (CHAR8 *) &Common->Signature;
+  Walker = (CHAR8 *) &Result;
   for (Index = 0; Index < sizeof (Common->Signature); Index++) {
     if (!IsAsciiPrint (Walker[Index])) {
       Walker[Index] = '?';