From 9fe95160d22e34d5a3a1ce644173e3f75cc1e2f2 Mon Sep 17 00:00:00 2001
From: "timeless@mozdev.org" <timeless@mozdev.org>
Date: Mon, 11 Jan 2010 07:40:00 -0800
Subject: [PATCH] Bug 538930 - [@ @0x0 | nsNotifyAddrListener::Run] assumes
 InitIPHelperLibrary will never fail and that sNotifyAddrChange will be non
 null, r=biesi

---
 netwerk/system/win32/nsNotifyAddrListener.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/netwerk/system/win32/nsNotifyAddrListener.cpp b/netwerk/system/win32/nsNotifyAddrListener.cpp
index 718ba5e48ca1..c8ae22b36721 100644
--- a/netwerk/system/win32/nsNotifyAddrListener.cpp
+++ b/netwerk/system/win32/nsNotifyAddrListener.cpp
@@ -177,6 +177,11 @@ nsNotifyAddrListener::Run()
 
     InitIPHelperLibrary();
 
+    if (!sNotifyAddrChange) {
+        CloseHandle(ev);
+        return NS_ERROR_NOT_AVAILABLE;
+    }
+
     overlapped.hEvent = ev;
     while (!shuttingDown) {
         HANDLE h;