From a02d83d76c5f252e9feeb4abf818a1c15490e913 Mon Sep 17 00:00:00 2001
From: "gavin%gavinsharp.com" <gavin%gavinsharp.com>
Date: Sun, 26 Feb 2006 19:39:06 +0000
Subject: [PATCH] Bug 328298: crash when passing null to loadAndRegisterSheet,
 r+sr=dbaron

---
 layout/base/nsStyleSheetService.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/layout/base/nsStyleSheetService.cpp b/layout/base/nsStyleSheetService.cpp
index 36a7126c1414..d6c3e6e88a8b 100644
--- a/layout/base/nsStyleSheetService.cpp
+++ b/layout/base/nsStyleSheetService.cpp
@@ -142,6 +142,7 @@ nsStyleSheetService::LoadAndRegisterSheet(nsIURI *aSheetURI,
                                           PRUint32 aSheetType)
 {
   NS_ENSURE_ARG(aSheetType == AGENT_SHEET || aSheetType == USER_SHEET);
+  NS_ENSURE_ARG_POINTER(aSheetURI);
 
   nsCOMPtr<nsICSSLoader> loader = do_CreateInstance(kCSSLoaderCID);
   nsCOMPtr<nsICSSStyleSheet> sheet;