From 5f439cea99eca931e33840b4b79625c550eb6c47 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Mon, 18 Aug 2014 20:07:15 +0200
Subject: [PATCH] [scene_qpainter] Add safety check in screenGeometryChanged

The buffer might be null, so better check for it.
---
 scene_qpainter.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scene_qpainter.cpp b/scene_qpainter.cpp
index 551ab58dc0..0096ca8811 100644
--- a/scene_qpainter.cpp
+++ b/scene_qpainter.cpp
@@ -152,6 +152,9 @@ void WaylandQPainterBackend::lastFrameRendered()
 void WaylandQPainterBackend::screenGeometryChanged(const QSize &size)
 {
     Q_UNUSED(size)
+    if (!m_buffer) {
+        return;
+    }
     m_buffer->setUsed(false);
     m_buffer = NULL;
 }