From 4fb5cf4ba6102c4e62113cc37b53c383c9c11708 Mon Sep 17 00:00:00 2001
From: Kim Kulling <kimkulling@users.noreply.github.com>
Date: Tue, 7 Jun 2022 23:33:56 +0200
Subject: [PATCH] Fix  possible nullptr exception

- closes https://github.com/assimp/assimp/issues/4418
---
 code/AssetLib/glTF2/glTF2Exporter.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/AssetLib/glTF2/glTF2Exporter.cpp b/code/AssetLib/glTF2/glTF2Exporter.cpp
index ffd8d223e..932fc4197 100644
--- a/code/AssetLib/glTF2/glTF2Exporter.cpp
+++ b/code/AssetLib/glTF2/glTF2Exporter.cpp
@@ -908,7 +908,7 @@ Ref<Node> FindSkeletonRootJoint(Ref<Skin> &skinRef) {
     do {
         startNodeRef = parentNodeRef;
         parentNodeRef = startNodeRef->parent;
-    } while (!parentNodeRef->jointName.empty());
+    } while (nullptr != parentNodeRef && !parentNodeRef->jointName.empty());
 
     return parentNodeRef;
 }