From f221f57c7cdf23055f79eb50bd9d4b0b4f42c703 Mon Sep 17 00:00:00 2001
From: Ilya Lavrenov <ilya.lavrenov@itseez.com>
Date: Fri, 27 Dec 2013 14:02:03 +0400
Subject: [PATCH] this commit prevents segfaults in case of opencl disabled

---
 modules/core/src/ocl.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/modules/core/src/ocl.cpp b/modules/core/src/ocl.cpp
index 7b64440513..9b7564250f 100644
--- a/modules/core/src/ocl.cpp
+++ b/modules/core/src/ocl.cpp
@@ -2306,7 +2306,11 @@ bool Context2::create(int dtype0)
 
 Context2::~Context2()
 {
-    p->release();
+    if (p)
+    {
+        p->release();
+        p = NULL;
+    }
 }
 
 Context2::Context2(const Context2& c)
@@ -2329,7 +2333,7 @@ Context2& Context2::operator = (const Context2& c)
 
 void* Context2::ptr() const
 {
-    return p->handle;
+    return p == NULL ? NULL : p->handle;
 }
 
 size_t Context2::ndevices() const