From 083d9bd0a6a74c4eaca4a733c23bafcb7efd4ae7 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Fri, 13 Sep 2002 23:35:24 +0000
Subject: [PATCH] prevent core dump when assertion fails

---
 panda/src/pgraph/nodePath.I | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/panda/src/pgraph/nodePath.I b/panda/src/pgraph/nodePath.I
index c4d8045cf7..2e303ea2f3 100644
--- a/panda/src/pgraph/nodePath.I
+++ b/panda/src/pgraph/nodePath.I
@@ -1018,7 +1018,10 @@ is_hidden(DrawMask camera_mask) const {
 INLINE bool NodePath::
 unstash() {
   nassertr(!is_singleton(), false);
-  return get_parent().node()->unstash_child(node());
+  PandaNode *parent_node = get_parent().node();
+  PandaNode *this_node = node();
+  nassertr(parent_node != (PandaNode *)NULL && this_node != (PandaNode *)NULL, false);
+  return parent_node->unstash_child(this_node);
 }
 
 ////////////////////////////////////////////////////////////////////