Fix a bug in PxeBcDriver (When disconnect PxeBc driver under shell environment will cause a exception)

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11324 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 10 insertions, 1 deletions

diff --git a/NetworkPkg/UefiPxeBcDxe/PxeBcDriver.c b/NetworkPkg/UefiPxeBcDxe/PxeBcDriver.c
index 769d1971d7..4abb6988f5 100644
--- a/NetworkPkg/UefiPxeBcDxe/PxeBcDriver.c
+++ b/NetworkPkg/UefiPxeBcDxe/PxeBcDriver.c
@@ -1,7 +1,7 @@
 /** @file

   Driver Binding functions implementationfor for UefiPxeBc Driver.

 

-  Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>

+  Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>

 

   This program and the accompanying materials

   are licensed and made available under the terms and conditions of the BSD License

@@ -1439,6 +1439,15 @@ PxeBcDriverBindingStop (
     }

   }

 

+  //

+  // Stop functionality of PXE Base Code protocol

+  //

+  Status = Private->PxeBc.Stop (&Private->PxeBc);

+  if (Status != EFI_SUCCESS && Status != EFI_NOT_STARTED) {

+    return Status;

+  }

+

+

   if (Private->Ip4Nic != NULL && !IsIpv6) {

     PxeBcDestroyIp4Children (This, Private);

   }