X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdeModulePkg%2FUniversal%2FNetwork%2FMnpDxe%2FMnpMain.c;h=d96178a1d9943a3b835c030a38be35a6d4b21094;hp=e34936f3b861c0736f423bef7d8c3897e64f6770;hb=c0fd7f734e2d33e22215899b40a47b843129541d;hpb=779ae3579848a36319d67a6ba012b4b9aa88aa6b

diff --git a/MdeModulePkg/Universal/Network/MnpDxe/MnpMain.c b/MdeModulePkg/Universal/Network/MnpDxe/MnpMain.c
index e34936f3b8..d96178a1d9 100644
--- a/MdeModulePkg/Universal/Network/MnpDxe/MnpMain.c
+++ b/MdeModulePkg/Universal/Network/MnpDxe/MnpMain.c
@@ -1,15 +1,8 @@
 /** @file
   Implementation of Managed Network Protocol public services.
 
-Copyright (c) 2005 - 2009, Intel Corporation.<BR>
-All rights reserved. This program and the accompanying materials
-are licensed and made available under the terms and conditions
-of the BSD License which accompanies this distribution.  The full
-text of the license may be found at<BR>
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+Copyright (c) 2005 - 2016, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
 
@@ -52,6 +45,7 @@ MnpGetModeData (
   EFI_SIMPLE_NETWORK_PROTOCOL *Snp;
   EFI_TPL                     OldTpl;
   EFI_STATUS                  Status;
+  UINT32                      InterruptStatus;
 
   if (This == NULL) {
     return EFI_INVALID_PARAMETER;
@@ -73,6 +67,12 @@ MnpGetModeData (
     // Copy the underlayer Snp mode data.
     //
     Snp = Instance->MnpServiceData->MnpDeviceData->Snp;
+
+    //
+    // Upon successful return of GetStatus(), the Snp->Mode->MediaPresent
+    // will be updated to reflect any change of media status
+    //
+    Snp->GetStatus (Snp, &InterruptStatus, NULL);
     CopyMem (SnpModeData, Snp->Mode, sizeof (*SnpModeData));
   }
 
@@ -545,7 +545,10 @@ MnpTransmit (
   //
   // Build the tx packet
   //
-  MnpBuildTxPacket (MnpServiceData, Token->Packet.TxData, &PktBuf, &PktLen);
+  Status = MnpBuildTxPacket (MnpServiceData, Token->Packet.TxData, &PktBuf, &PktLen);
+  if (EFI_ERROR (Status)) {
+    goto ON_EXIT;
+  }
 
   //
   //  OK, send the packet synchronously.