From ea48fcfc9f41084336f4601a3b72fe5f5d1487ca Mon Sep 17 00:00:00 2001
From: Dmitry-Me <wipedout@yandex.ru>
Date: Mon, 9 Feb 2015 12:38:02 +0300
Subject: [PATCH] Fix possible null pointer dereference

---
 modules/core/src/cuda_host_mem.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/modules/core/src/cuda_host_mem.cpp b/modules/core/src/cuda_host_mem.cpp
index 2ad733b675..70dd840bd3 100644
--- a/modules/core/src/cuda_host_mem.cpp
+++ b/modules/core/src/cuda_host_mem.cpp
@@ -107,10 +107,13 @@ public:
 
     void deallocate(UMatData* u) const
     {
+        if (!u)
+            return;
+
         CV_Assert(u->urefcount >= 0);
         CV_Assert(u->refcount >= 0);
 
-        if (u && u->refcount == 0)
+        if (u->refcount == 0)
         {
             if ( !(u->flags & UMatData::USER_ALLOCATED) )
             {