null check to prevent crash reported by a few 0.2 talkbacks

git-svn-id: svn://10.0.0.236/trunk@131018 18797224-902f-48f8-a5cc-f745e15eee43
2002-10-02 19:59:08 +00:00 · 2002-10-02 19:59:08 +00:00 · d71c9f4edb
commit d71c9f4edb
parent f505719979
1 changed files with 3 additions and 0 deletions
--- a/mozilla/toolkit/components/satchel/src/nsFormFillController.cpp
+++ b/mozilla/toolkit/components/satchel/src/nsFormFillController.cpp
@ -556,6 +556,9 @@ nsFormFillController::AddFocusListener(nsIDOMWindow *aWindow)
 void
 nsFormFillController::RemoveFocusListener(nsIDOMWindow *aWindow)
 {
+  if (!aWindow)
+    return;
+
  StopControllingInput();
  
  nsCOMPtr<nsPIDOMWindow> privateDOMWindow(do_QueryInterface(aWindow));