From 272ecccd793c8fb12f4f356ada18a870c2426603 Mon Sep 17 00:00:00 2001
From: "Feng, YunhuaX" <yunhuax.feng@intel.com>
Date: Mon, 15 Oct 2018 17:03:51 +0800
Subject: [PATCH] BaseTools: Fix regression boot hang issue by commit
 0e982cf03dd5

Fix regression boot hang issue by commit
0e982cf03dd5023b90def60c3656e5e18135ebac

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Yunhua Feng <yunhuax.feng@intel.com>
Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>
---
 BaseTools/Source/Python/GenFds/Fv.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/BaseTools/Source/Python/GenFds/Fv.py b/BaseTools/Source/Python/GenFds/Fv.py
index 510f2834a8..c66fc38327 100644
--- a/BaseTools/Source/Python/GenFds/Fv.py
+++ b/BaseTools/Source/Python/GenFds/Fv.py
@@ -204,8 +204,8 @@ class FV (FvClassObject):
                     GenFdsGlobalVariable.VerboseLogger("\nGenerate %s FV Successfully" % self.UiFvName)
                     GenFdsGlobalVariable.SharpCounter = 0
 
-                    Buffer.write(FvFileObj.read())
                     FvFileObj.seek(0)
+                    Buffer.write(FvFileObj.read())
                     # FV alignment position.
                     FvAlignmentValue = 1 << (ord(FvHeaderBuffer[0x2E]) & 0x1F)
                     if FvAlignmentValue >= 0x400: