dont unpin deviceExt list if not pinned

diff --git a/vke/src/base/Device.cs b/vke/src/base/Device.cs
index 434a3abab9e7b7314c994d4fce72301a6f4773aa..6560165fe3dccd7b7f2736bdd88b7525b9ebcce8 100644 (file)
--- a/vke/src/base/Device.cs
+++ b/vke/src/base/Device.cs
@@ -86,7 +86,8 @@ namespace vke {
                        foreach (List<float> fa in prioritiesLists)
                                fa.Unpin ();
 
-                       deviceExtensions.Unpin ();
+                       if (deviceExtensions.Count > 0)
+                               deviceExtensions.Unpin ();
 
                        //Vk.LoadDeviceFunctionPointers (dev);