From fe3c82de1cd72d154d407597b35ef1c90bb3ead3 Mon Sep 17 00:00:00 2001
From: Tim Jenssen <tim.jenssen@qt.io>
Date: Thu, 20 Jul 2023 19:31:43 +0200
Subject: [PATCH] qmlpreview: fix crash

Change-Id: I862a02b24948435f700cf9284edb369a92ce584d
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
---
 src/plugins/qmlpreview/qmlpreviewplugin.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/plugins/qmlpreview/qmlpreviewplugin.cpp b/src/plugins/qmlpreview/qmlpreviewplugin.cpp
index 8803475d8a6..d18b8c37b0e 100644
--- a/src/plugins/qmlpreview/qmlpreviewplugin.cpp
+++ b/src/plugins/qmlpreview/qmlpreviewplugin.cpp
@@ -329,9 +329,9 @@ void QmlPreviewPlugin::previewCurrentFile()
 
 void QmlPreviewPluginPrivate::onEditorChanged(Core::IEditor *editor)
 {
-    if (m_lastEditor) {
-        Core::IDocument *doc = m_lastEditor->document();
-        disconnect(doc, &Core::IDocument::contentsChanged, this, &QmlPreviewPluginPrivate::setDirty);
+    if (m_lastEditor && m_lastEditor->document()) {
+        disconnect(m_lastEditor->document(), &Core::IDocument::contentsChanged,
+                   this, &QmlPreviewPluginPrivate::setDirty);
         if (m_dirty) {
             m_dirty = false;
             checkEditor();