From d996f6707a8733a8d151dcad59981cbb0f2f03f1 Mon Sep 17 00:00:00 2001
From: Sami Merila <sami.merila@nokia.com>
Date: Thu, 25 Feb 2010 17:06:32 +0200
Subject: Crash in QGraphicsScenePrivate::setFocusItemHelper

QGraphicsScenePrivate::setFocusItemHelper accesses
views.at(i)->inputContext() without checking if it is null.
This leads to a crash if it really is null.

Fixed by adding a null pointer check.

Task-number: QT-3008
Reviewed-by: axis
---
 src/gui/graphicsview/qgraphicsscene.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index 4472272..1cd1dba 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -801,7 +801,8 @@ void QGraphicsScenePrivate::setFocusItemHelper(QGraphicsItem *item,
             // do it ourselves.
             if (item) {
                 for (int i = 0; i < views.size(); ++i)
-                    views.at(i)->inputContext()->reset();
+                    if (views.at(i)->inputContext())
+                        views.at(i)->inputContext()->reset();
             }
         }
 #endif //QT_NO_IM
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