From 3efa2a6af0969730034a631ad9f4f0fc39bef85b Mon Sep 17 00:00:00 2001
From: Tobias Hunger <tobias.hunger@qt.io>
Date: Mon, 2 Mar 2020 10:25:30 +0100
Subject: [PATCH] ADS: Prevent nullptr access in DockWidget

Change-Id: I071fd6a86d8e6951305d4e2d82d2025afafd4fc6
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
---
 src/libs/advanceddockingsystem/dockwidget.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/libs/advanceddockingsystem/dockwidget.cpp b/src/libs/advanceddockingsystem/dockwidget.cpp
index 900a74bc266..72a59c5b1f4 100644
--- a/src/libs/advanceddockingsystem/dockwidget.cpp
+++ b/src/libs/advanceddockingsystem/dockwidget.cpp
@@ -364,7 +364,9 @@ namespace ADS
                                                   ? dockContainerWidget->topLevelDockWidget()
                                                   : nullptr;
         DockWidget::emitTopLevelEventForWidget(topLevelDockWidgetAfter, true);
-        FloatingDockContainer *floatingContainer = dockContainerWidget->floatingWidget();
+        FloatingDockContainer *floatingContainer = dockContainerWidget
+                                                       ? dockContainerWidget->floatingWidget()
+                                                       : nullptr;
         if (floatingContainer)
             floatingContainer->updateWindowTitle();