From 7b3e3f69fb8600a43d51a464a812f3c00d770194 Mon Sep 17 00:00:00 2001
From: peng xiao <hisenxpress@gmail.com>
Date: Tue, 3 Sep 2013 09:31:13 +0800
Subject: [PATCH] Modify according to @alalek.

---
 modules/ocl/src/gemm.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/modules/ocl/src/gemm.cpp b/modules/ocl/src/gemm.cpp
index 6e04bac..a9533b5 100644
--- a/modules/ocl/src/gemm.cpp
+++ b/modules/ocl/src/gemm.cpp
@@ -81,11 +81,14 @@ static Mutex cs;
 
 void cv::ocl::clBlasSetup()
 {
-    AutoLock al(cs);
     if(!clBlasInitialized)
     {
-        openCLSafeCall(clAmdBlasSetup());
-        clBlasInitialized = true;
+        AutoLock al(cs);
+        if(!clBlasInitialized)
+        {
+            openCLSafeCall(clAmdBlasSetup());
+            clBlasInitialized = true;
+        }
     }
 }
 
-- 
2.7.4