{
rc = malloc (sizeof (*rc));
if (rc == NULL)
+ {
+ pthread_mutex_unlock (&cache_lock);
return (-1);
+ }
rc->values_num = 0;
rc->values = NULL;
rc->first_value = 0;
cache = c_avl_create ((int (*) (const void *, const void *)) strcmp);
if (cache == NULL)
{
+ pthread_mutex_unlock (&cache_lock);
ERROR ("rrdtool plugin: c_avl_create failed.");
return (-1);
}