From 098e9f49256e352f557fdcbcfbab37f8dd89ff63 Mon Sep 17 00:00:00 2001
From: Fu Siyuan <siyuan.fu@intel.com>
Date: Wed, 18 Sep 2013 02:27:20 +0000
Subject: [PATCH] Fix a bug in Ip4 driver that Ip4.Transmit() interface may
 return EFI_INVALID_PARAMETER without restore TPL. Signed-off-by: Fu Siyuan
 <siyuan.fu@intel.com> Reviewed-by: Ye Ting <ting.ye@intel.com> Reviewed-by:
 Jin Eric <eric.jin@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14682 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
index 29f07ce4a3..cd01685a30 100644
--- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
+++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
@@ -2002,7 +2002,8 @@ EfiIp4Transmit (
 
     RawHdrLen = (UINT8) (RawHdrLen & 0x0f);
     if (RawHdrLen < 5) {
-      return EFI_INVALID_PARAMETER;
+      Status = EFI_INVALID_PARAMETER;
+      goto ON_EXIT;
     }
 
     RawHdrLen = (UINT8) (RawHdrLen << 2);
@@ -2014,7 +2015,8 @@ EfiIp4Transmit (
     DontFragment = IP4_DO_NOT_FRAGMENT (Head.Fragment);
 
     if (!DontFragment) {
-      return EFI_INVALID_PARAMETER;
+      Status = EFI_INVALID_PARAMETER;
+      goto ON_EXIT;
     }
 
     GateWay = IP4_ALLZERO_ADDRESS;
-- 
2.39.2