Add check before using it to avoid access violation.

[mirror_edk2.git] / NetworkPkg / TcpDxe / TcpMain.c

diff --git a/NetworkPkg/TcpDxe/TcpMain.c b/NetworkPkg/TcpDxe/TcpMain.c
index 55a6d5b7d21330dbea17054cd3989d90708a930e..3c103444bd10681f525ee43a08398831daa29d5a 100644 (file)
--- a/NetworkPkg/TcpDxe/TcpMain.c
+++ b/NetworkPkg/TcpDxe/TcpMain.c
@@ -1,7 +1,7 @@
 /** @file\r
   Implementation of EFI_TCP4_PROTOCOL and EFI_TCP6_PROTOCOL.\r
 \r
-  Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>\r
 \r
   This program and the accompanying materials\r
   are licensed and made available under the terms and conditions of the BSD License\r
@@ -75,12 +75,12 @@ TcpChkDataBuf (
 EFI_STATUS\r
 EFIAPI\r
 Tcp4GetModeData (\r
-  IN CONST  EFI_TCP4_PROTOCOL                  *This,\r
-  OUT       EFI_TCP4_CONNECTION_STATE          *Tcp4State      OPTIONAL,\r
-  OUT       EFI_TCP4_CONFIG_DATA               *Tcp4ConfigData OPTIONAL,\r
-  OUT       EFI_IP4_MODE_DATA                  *Ip4ModeData    OPTIONAL,\r
-  OUT       EFI_MANAGED_NETWORK_CONFIG_DATA    *MnpConfigData  OPTIONAL,\r
-  OUT       EFI_SIMPLE_NETWORK_MODE            *SnpModeData    OPTIONAL\r
+  IN   EFI_TCP4_PROTOCOL                  *This,\r
+  OUT  EFI_TCP4_CONNECTION_STATE          *Tcp4State      OPTIONAL,\r
+  OUT  EFI_TCP4_CONFIG_DATA               *Tcp4ConfigData OPTIONAL,\r
+  OUT  EFI_IP4_MODE_DATA                  *Ip4ModeData    OPTIONAL,\r
+  OUT  EFI_MANAGED_NETWORK_CONFIG_DATA    *MnpConfigData  OPTIONAL,\r
+  OUT  EFI_SIMPLE_NETWORK_MODE            *SnpModeData    OPTIONAL\r
   )\r
 {\r
   TCP4_MODE_DATA  TcpMode;\r