From a8129894369023d0e9367c6474929224aec06d7c Mon Sep 17 00:00:00 2001
From: Jose Luis Guardiola <jlguardi@hotmail.com>
Date: Fri, 20 May 2016 13:18:02 +0200
Subject: [PATCH] Fixed #6563: Incorrect management for invalid
 files/filestorage/filenode in ml module

---
 modules/core/include/opencv2/core.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/core/include/opencv2/core.hpp b/modules/core/include/opencv2/core.hpp
index 0d180f51ad..70c50275f9 100644
--- a/modules/core/include/opencv2/core.hpp
+++ b/modules/core/include/opencv2/core.hpp
@@ -3036,6 +3036,7 @@ public:
     {
         FileStorage fs(filename, FileStorage::READ);
         FileNode fn = objname.empty() ? fs.getFirstTopLevelNode() : fs[objname];
+        if (fn.empty()) return Ptr<_Tp>();
         Ptr<_Tp> obj = _Tp::create();
         obj->read(fn);
         return !obj->empty() ? obj : Ptr<_Tp>();