From e97e2b7738e6bf739794b0df3506aabc98822570 Mon Sep 17 00:00:00 2001
From: lgao4 <lgao4@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Wed, 22 Apr 2009 03:19:42 +0000
Subject: [PATCH] Fix that the variable can't be stored. Next, I will update
 GetBrowserData API.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8147 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../Universal/BdsDxe/BootMaint/BootMaint.c         | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/IntelFrameworkModulePkg/Universal/BdsDxe/BootMaint/BootMaint.c b/IntelFrameworkModulePkg/Universal/BdsDxe/BootMaint/BootMaint.c
index 982db88dbf..1e8e593059 100644
--- a/IntelFrameworkModulePkg/Universal/BdsDxe/BootMaint/BootMaint.c
+++ b/IntelFrameworkModulePkg/Universal/BdsDxe/BootMaint/BootMaint.c
@@ -272,8 +272,16 @@ BootMaintCallback (
   // Retrive uncommitted data from Form Browser
   //
   CurrentFakeNVMap = (BMM_FAKE_NV_DATA *) HiiGetBrowserData (&mBootMaintGuid, mBootMaintStorageName, sizeof (BMM_FAKE_NV_DATA));
-  if (CurrentFakeNVMap == NULL) {
-    return EFI_NOT_FOUND;
+  DisMap = (UINT8 *) CurrentFakeNVMap;
+  for (Index = 0; Index < sizeof (BMM_FAKE_NV_DATA); Index ++) {
+    if (DisMap [Index] != 0) {
+      break;
+    }
+  }
+  
+  if (Index == sizeof (BMM_FAKE_NV_DATA)) {
+    FreePool (CurrentFakeNVMap);
+    CurrentFakeNVMap = &Private->BmmFakeNvData;
   }
 
   //
@@ -590,7 +598,7 @@ BootMaintCallback (
   //
   // Update local settting.
   //
-  if (CurrentFakeNVMap != NULL) {
+  if (CurrentFakeNVMap != &Private->BmmFakeNvData) {
     CopyMem (&Private->BmmFakeNvData, CurrentFakeNVMap, sizeof (BMM_FAKE_NV_DATA));
     FreePool (CurrentFakeNVMap);
   }
-- 
2.39.2