From e96b8c3c83a016ce4add15d1f54ef12d4280c2cc Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Sat, 13 Sep 2008 12:22:45 +0000
Subject: [PATCH]  - Fix a possible crash

svn path=/branches/aicom-network-fixes/; revision=36185
---
 drivers/network/ndis/ndis/buffer.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/network/ndis/ndis/buffer.c b/drivers/network/ndis/ndis/buffer.c
index a87d36d6660..98033b3cc2b 100644
--- a/drivers/network/ndis/ndis/buffer.c
+++ b/drivers/network/ndis/ndis/buffer.c
@@ -891,13 +891,15 @@ NdisGetFirstBufferFromPacket(
 
     Buffer          = _Packet->Private.Head;
     *_FirstBuffer   = Buffer;
-    *_FirstBufferVA = MmGetMdlVirtualAddress(Buffer);
 
     if (Buffer != NULL) {
         *_FirstBufferLength = MmGetMdlByteCount(Buffer);
+        *_FirstBufferVA = MmGetMdlVirtualAddress(Buffer);
         Buffer = Buffer->Next;
-    } else
+    } else {
         *_FirstBufferLength = 0;
+        *_FirstBufferVA = NULL;
+    }
 
     *_TotalBufferLength = *_FirstBufferLength;