From e29b72384b66ac5fba3b287c8f6a3376d0aff852 Mon Sep 17 00:00:00 2001
From: Friedemann Kleint <Friedemann.Kleint@qt.io>
Date: Tue, 29 Aug 2017 16:19:09 +0200
Subject: Hello GL2 example: Fix exit crash

Bail out of cleanup() when run 2nd time.

Task-number: QTBUG-60626
Change-Id: I8a9be2fcfb0e8a5584ce8ed7952affff24bd2a33
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
---
 examples/opengl/hellogl2/glwidget.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'examples/opengl/hellogl2')

diff --git a/examples/opengl/hellogl2/glwidget.cpp b/examples/opengl/hellogl2/glwidget.cpp
index f9518ffac5..318adb5043 100644
--- a/examples/opengl/hellogl2/glwidget.cpp
+++ b/examples/opengl/hellogl2/glwidget.cpp
@@ -128,6 +128,8 @@ void GLWidget::setZRotation(int angle)
 
 void GLWidget::cleanup()
 {
+    if (m_program == nullptr)
+        return;
     makeCurrent();
     m_logoVbo.destroy();
     delete m_program;
-- 
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