From 460d555e69eb1f7d4549b7d344e6847304828796 Mon Sep 17 00:00:00 2001
From: Jacek Poplawski <jacek.poplawski@qt.io>
Date: Wed, 13 Dec 2023 08:25:42 +0100
Subject: [PATCH] Make sure OpenGLContext is not nullptr

In QOpenGLCompositorBackingStore::resize it is already checked whether dstWin is valid, but dstCtx may also be nullptr at this point.

Task-number: QTBUG-120078
Change-Id: I4a6ad71dd8225b94baff05984275ad1860298dfc
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
(cherry picked from commit 3f724466374cc34d0aba862f009a417540df81cd)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/opengl/qopenglcompositorbackingstore.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/opengl/qopenglcompositorbackingstore.cpp b/src/opengl/qopenglcompositorbackingstore.cpp
index 8efccce5793..931734cf604 100644
--- a/src/opengl/qopenglcompositorbackingstore.cpp
+++ b/src/opengl/qopenglcompositorbackingstore.cpp
@@ -249,6 +249,8 @@ void QOpenGLCompositorBackingStore::resize(const QSize &size, const QRegion &sta
 
     QOpenGLCompositor *compositor = QOpenGLCompositor::instance();
     QOpenGLContext *dstCtx = compositor->context();
+    if (!dstCtx)
+        return;
     QWindow *dstWin = compositor->targetWindow();
     if (!dstWin)
         return;