From: Fu Siyuan <siyuan.fu@intel.com>
Date: Wed, 18 Sep 2013 02:27:20 +0000 (+0000)
Subject: Fix a bug in Ip4 driver that Ip4.Transmit() interface may return EFI_INVALID_PARAMETE... 
X-Git-Tag: edk2-stable201903~12245
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=098e9f49256e352f557fdcbcfbab37f8dd89ff63

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
---

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;