From 534b09c2aa343ddec340863be1036938d45e9769 Mon Sep 17 00:00:00 2001
From: Paul Olav Tvete <paul.tvete@theqtcompany.com>
Date: Wed, 28 Oct 2015 10:20:26 +0100
Subject: Null pointer check for example

The documentation says that defaultOutput() is initialized later.

Change-Id: I3dcc6c9dc7395c7986721235333388614928347c
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
---
 examples/wayland/qwindow-compositor/windowcompositor.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/examples/wayland/qwindow-compositor/windowcompositor.cpp b/examples/wayland/qwindow-compositor/windowcompositor.cpp
index b55975623..24a0e0f52 100644
--- a/examples/wayland/qwindow-compositor/windowcompositor.cpp
+++ b/examples/wayland/qwindow-compositor/windowcompositor.cpp
@@ -198,12 +198,16 @@ void WindowCompositor::triggerRender()
 
 void WindowCompositor::startRender()
 {
-    defaultOutput()->frameStarted();
+    QWaylandOutput *out = defaultOutput();
+    if (out)
+        out->frameStarted();
 }
 
 void WindowCompositor::endRender()
 {
-    defaultOutput()->sendFrameCallbacks();
+    QWaylandOutput *out = defaultOutput();
+    if (out)
+        out->sendFrameCallbacks();
 }
 
 void WindowCompositor::updateCursor()
-- 
cgit v1.2.3