From 482cb18ce49635a22b2209c1ce4c5aee1612f544 Mon Sep 17 00:00:00 2001
From: nowrep <nowrep@gmail.com>
Date: Sun, 21 Apr 2013 20:44:08 +0200
Subject: [PATCH] [Crash] Fixed occasional crash when extracting form data from
 page.

Apparently, QWebFrame::childFrames can return NULL frame.
---
 src/lib/autofill/pageformcompleter.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/lib/autofill/pageformcompleter.cpp b/src/lib/autofill/pageformcompleter.cpp
index 87f04eebf..eb379f29f 100644
--- a/src/lib/autofill/pageformcompleter.cpp
+++ b/src/lib/autofill/pageformcompleter.cpp
@@ -239,8 +239,10 @@ QWebElementCollection PageFormCompleter::getAllElementsFromPage(QWebPage* page,
     frames.append(page->mainFrame());
     while (!frames.isEmpty()) {
         QWebFrame* frame = frames.takeFirst();
-        list.append(frame->findAllElements(selector));
-        frames += frame->childFrames();
+        if (frame) {
+            list.append(frame->findAllElements(selector));
+            frames += frame->childFrames();
+        }
     }
 
     return list;