From ebfa79ef64d3f927c9931405fb6148f2247370ed Mon Sep 17 00:00:00 2001
From: Jeremy Koritzinsky <jkoritzinsky@gmail.com>
Date: Tue, 30 Jan 2018 18:20:54 -0600
Subject: [PATCH] Add null check for scene in DeferredRenderer disposal.

---
 src/Avalonia.Visuals/Rendering/DeferredRenderer.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Avalonia.Visuals/Rendering/DeferredRenderer.cs b/src/Avalonia.Visuals/Rendering/DeferredRenderer.cs
index 709ec670ac..3d5f6d5a57 100644
--- a/src/Avalonia.Visuals/Rendering/DeferredRenderer.cs
+++ b/src/Avalonia.Visuals/Rendering/DeferredRenderer.cs
@@ -115,7 +115,7 @@ namespace Avalonia.Rendering
         public void Dispose()
         {
             var scene = Interlocked.Exchange(ref _scene, null);
-            scene.Dispose();
+            scene?.Dispose();
             Stop();
         }