From 36a2b5f899b35d4ed14f4c6a229c7888e10c5fd8 Mon Sep 17 00:00:00 2001
From: Richard Moe Gustavsen <richard.gustavsen@nokia.com>
Date: Fri, 29 Jan 2010 10:49:14 +0100
Subject: Carbon: crash problem in QWidgetPrivate::hide_sys

The crash occurs because we at one point try to assign a widget that
is marked as 'about to be deleted' to a QPointer, after clearguards
has been called. The correct fix is to avoid such an assignment in
the first place.

Task-number: QTBUG-4227
Reviewed-by: Prasanth
(cherry picked from commit f842ec12706b70f94ab5f634dc2aa025ba2cf3f2)
---
 src/gui/kernel/qwidget_mac.mm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index ebfab21..7396ae3 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -3510,6 +3510,8 @@ void QWidgetPrivate::hide_sys()
 
     if (!QWidget::mouseGrabber()){
         QWidget *enterWidget = QApplication::widgetAt(QCursor::pos());
+        if (enterWidget->data->in_destructor)
+            enterWidget = 0;
         QApplicationPrivate::dispatchEnterLeave(enterWidget, qt_mouseover);
         qt_mouseover = enterWidget;
     }
-- 
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