From da7d8cee0fffeebe5490d0a9770e760af0197909 Mon Sep 17 00:00:00 2001
From: Michal Babej <michal.babej@tut.fi>
Date: Thu, 11 Jan 2018 13:17:46 +0100
Subject: [PATCH 14/14] Fix a data race in pocl_runtime_config.c

LL_PREPEND(head, item) changes the head (env_cache) on every call,
which conflicts with other threads calling find_env() with env_cache.
---
 lib/CL/pocl_runtime_config.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/CL/pocl_runtime_config.c b/lib/CL/pocl_runtime_config.c
index d84ea263..c7000068 100644
--- a/lib/CL/pocl_runtime_config.c
+++ b/lib/CL/pocl_runtime_config.c
@@ -62,7 +62,7 @@ static env_data* find_env (env_data* cache, const char* key)
       ed->env = strdup (key);
       ed->value = strdup (value);
       ed->next = NULL;
-      LL_PREPEND(env_cache, ed);
+      LL_APPEND(env_cache, ed);
       POCL_UNLOCK(lock);
       return ed;
     }
-- 
2.15.1