From b2b9fdfda0f7838059d7e826d81740977ef35a6e Mon Sep 17 00:00:00 2001
From: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Date: Mon, 15 Sep 2014 16:23:02 +0200
Subject: QSizeGrip: use a QPointer to the tracked TLW

And not a normal pointer. The problem is that in certain scenarios,
if the TLW containing a QSizeGrip changes and the old TLW gets
immediately destroyed, then the mechanism which updates the tracked
TLW is run too late, and ends up accessing a dangling pointer.
Therefore, we need to protect that pointer via a smart pointer.

Task-number: QTBUG-22867
Change-Id: Icfb051132bacde604f660ac7a98bc0a9d1022c68
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
---
 src/widgets/widgets/qsizegrip.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/widgets/widgets/qsizegrip.cpp b/src/widgets/widgets/qsizegrip.cpp
index e46de3958f..5994071bfc 100644
--- a/src/widgets/widgets/qsizegrip.cpp
+++ b/src/widgets/widgets/qsizegrip.cpp
@@ -83,7 +83,7 @@ public:
     int dyMax;
     Qt::Corner m_corner;
     bool gotMousePress;
-    QWidget *tlw;
+    QPointer<QWidget> tlw;
 #ifdef Q_WS_MAC
     void updateMacSizer(bool hide) const;
 #endif
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