From 83ef4246aaa4260861439af7e5bad18da63d6866 Mon Sep 17 00:00:00 2001
From: "rods%netscape.com"
 <rods%netscape.com@18797224-902f-48f8-a5cc-f745e15eee43>
Date: Tue, 4 Jun 2002 12:06:59 +0000
Subject: [PATCH] Check for null dom content before doing QI Bug 148760
 r=jkesier sr=jst

git-svn-id: svn://10.0.0.236/trunk@122673 18797224-902f-48f8-a5cc-f745e15eee43
---
 .../content/html/content/src/nsHTMLLabelElement.cpp    | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/mozilla/content/html/content/src/nsHTMLLabelElement.cpp b/mozilla/content/html/content/src/nsHTMLLabelElement.cpp
index e615c027746..d0f614a23ce 100644
--- a/mozilla/content/html/content/src/nsHTMLLabelElement.cpp
+++ b/mozilla/content/html/content/src/nsHTMLLabelElement.cpp
@@ -514,10 +514,12 @@ nsHTMLLabelElement::GetForContent()
     if (domDoc) {
       nsCOMPtr<nsIDOMElement> domElement;
       domDoc->GetElementById(elementId, getter_AddRefs(domElement));
-      nsIContent *result;
-      CallQueryInterface(domElement, &result);
-      if (result && !result->IsContentOfType(nsIContent::eHTML_FORM_CONTROL)) {
-        NS_RELEASE(result); // assigns null
+      nsIContent *result = nsnull;
+      if (domElement) {
+        CallQueryInterface(domElement, &result);
+        if (result && !result->IsContentOfType(nsIContent::eHTML_FORM_CONTROL)) {
+          NS_RELEASE(result); // assigns null
+        }
       }
       return result;
     }