File qdbusmenu-dont-leave-dangling-pointers.patch of Package libqt5-qtbase.8869

From 5ca9631d3a0717afb066471ed5eb3b3ed9a9c08a Mon Sep 17 00:00:00 2001
From: Dmitry Shachnev <mitya57@gmail.com>
Date: Wed, 7 Sep 2016 17:19:19 +0300
Subject: [PATCH] =?UTF-8?q?dbusmenu:=20Don=E2=80=99t=20leave=20dangling=20?=
 =?UTF-8?q?pointers=20when=20menus=20are=20destroyed?=
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Delete references from menu to its containing item, and vice versa.

Fixes https://launchpad.net/bugs/1620937

Task-number: QTBUG-55966
Change-Id: I58f0f0a90184bee4b0466c28d91c670a34fa65a5
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
---
 src/platformsupport/dbusmenu/qdbusplatformmenu.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/platformsupport/dbusmenu/qdbusplatformmenu.cpp b/src/platformsupport/dbusmenu/qdbusplatformmenu.cpp
index 5c259d5b67..a5ee52e73c 100644
--- a/src/platformsupport/dbusmenu/qdbusplatformmenu.cpp
+++ b/src/platformsupport/dbusmenu/qdbusplatformmenu.cpp
@@ -60,6 +60,8 @@ QDBusPlatformMenuItem::QDBusPlatformMenuItem(quintptr tag)
 QDBusPlatformMenuItem::~QDBusPlatformMenuItem()
 {
     menuItemsByID.remove(m_dbusID);
+    if (m_subMenu)
+        static_cast<QDBusPlatformMenu *>(m_subMenu)->setContainingMenuItem(Q_NULLPTR);
 }
 
 void QDBusPlatformMenuItem::setTag(quintptr tag)
@@ -162,6 +164,8 @@ QDBusPlatformMenu::QDBusPlatformMenu(quintptr tag)
 
 QDBusPlatformMenu::~QDBusPlatformMenu()
 {
+    if (m_containingMenuItem)
+        m_containingMenuItem->setMenu(Q_NULLPTR);
 }
 
 void QDBusPlatformMenu::insertMenuItem(QPlatformMenuItem *menuItem, QPlatformMenuItem *before)