From 64ebe27477d7e1fa2d4869ab91678d7413937135 Mon Sep 17 00:00:00 2001
From: Chuyuan Fu <fuchuyuan.kelly@gmail.com>
Date: Thu, 16 May 2019 18:13:29 -0700
Subject: [PATCH] Add safety check

---
 src/BulletCollision/BroadphaseCollision/btDbvt.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/BulletCollision/BroadphaseCollision/btDbvt.cpp b/src/BulletCollision/BroadphaseCollision/btDbvt.cpp
index 5ab3f9b60..166cb04c0 100644
--- a/src/BulletCollision/BroadphaseCollision/btDbvt.cpp
+++ b/src/BulletCollision/BroadphaseCollision/btDbvt.cpp
@@ -80,6 +80,7 @@ static DBVT_INLINE void deletenode(btDbvt* pdbvt,
 static void recursedeletenode(btDbvt* pdbvt,
 							  btDbvtNode* node)
 {
+	if (node == 0) return;
 	if (!node->isleaf())
 	{
 		recursedeletenode(pdbvt, node->childs[0]);