From a8706acb0ee847c1521bd8db71c144fd24480e0b Mon Sep 17 00:00:00 2001
From: Fu Siyuan <siyuan.fu@intel.com>
Date: Wed, 16 Sep 2015 08:52:24 +0000
Subject: [PATCH] NetworkPkg: Enhance the NULL pointer check before dereference
 it.

This patch enhances the NULL pointer check of the HttpInstance->RemoteHost
pointer before dereference it.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18482 6f19259b-4bc3-4df7-8a09-765794883524
---
 NetworkPkg/HttpDxe/HttpImpl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/NetworkPkg/HttpDxe/HttpImpl.c b/NetworkPkg/HttpDxe/HttpImpl.c
index 76c95b2bb6..50c0617436 100644
--- a/NetworkPkg/HttpDxe/HttpImpl.c
+++ b/NetworkPkg/HttpDxe/HttpImpl.c
@@ -316,7 +316,7 @@ EfiHttpRequest (
   Configure   = TRUE;
   ReConfigure = TRUE;  
 
-  if (HttpInstance->RemoteHost == NULL && HttpInstance->RemotePort == 0) {
+  if (HttpInstance->RemoteHost == NULL) {
     //
     // Request() is called the first time. 
     //
@@ -373,6 +373,7 @@ EfiHttpRequest (
       if (HttpInstance->RemoteHost != NULL) {
         FreePool (HttpInstance->RemoteHost);
         HttpInstance->RemoteHost = NULL;
+        HttpInstance->RemotePort = 0;
       }
     }
   }