write_redis plugin: Clean up allocated fields in `wr_config_free()`.

diff --git a/src/write_redis.c b/src/write_redis.c
index 32005cd67e7cb18f53d61f22ffbd1bf0a62f30e1..c817e4f414b3e483833720c7aafb2e2f891aa2ed 100644 (file)
--- a/src/write_redis.c
+++ b/src/write_redis.c
@@ -170,7 +170,9 @@ static void wr_config_free(void *ptr) /* {{{ */
     node->conn = NULL;
   }
 
+  pthread_mutex_destroy(&node->lock);
   sfree(node->host);
+  sfree(node->prefix);
   sfree(node);
 } /* }}} void wr_config_free */