diff --git a/tempesta_fw/cache.c b/tempesta_fw/cache.c
index 8e45da98b..487d647a7 100644
--- a/tempesta_fw/cache.c
+++ b/tempesta_fw/cache.c
@@ -1620,13 +1620,14 @@ cache_req_process_node(TfwHttpReq *req, tfw_http_cache_cb_t action)
 	if (!tfw_handle_validation_req(req, ce))
 		goto put;
 
-	resp = tfw_cache_build_resp(req, ce);
+	if (!(resp = tfw_cache_build_resp(req, ce)))
+		goto out;
 	/*
 	 * RFC 7234 p.4 Constructing Responses from Caches:
 	 * When a stored response is used to satisfy a request without
 	 * validation, a cache MUST generate an Age header field.
 	 */
-	if (resp && tfw_cache_set_hdr_age((TfwHttpMsg *)resp, ce)) {
+	if (tfw_cache_set_hdr_age((TfwHttpMsg *)resp, ce)) {
 		TFW_WARN("Unable to add Age: header, cached"
 			 " response [%p] dropped\n", resp);
 		TFW_INC_STAT_BH(clnt.msgs_otherr);
diff --git a/tempesta_fw/sched/tfw_sched_ratio.c b/tempesta_fw/sched/tfw_sched_ratio.c
index f4477a4fa..1ff68b6a6 100644
--- a/tempesta_fw/sched/tfw_sched_ratio.c
+++ b/tempesta_fw/sched/tfw_sched_ratio.c
@@ -1044,17 +1044,20 @@ tfw_sched_ratio_srvdesc_setup_srv(TfwServer *srv, TfwRatioSrvDesc *srvdesc)
 	conn = srvdesc->conn;
 	list_for_each_entry(srv_conn, &srv->conn_list, list) {
 		if (unlikely(ci++ == srv->conn_n))
-			return -EINVAL;
+			goto err;
 		*conn++ = srv_conn;
 	}
 	if (unlikely(ci != srv->conn_n))
-		return -EINVAL;
+		goto err;
 
 	srvdesc->conn_n = srv->conn_n;
 	srvdesc->srv = srv;
 	atomic64_set(&srvdesc->counter, 0);
 
 	return 0;
+err:
+	kfree(srvdesc->conn);
+	return -EINVAL;
 }
 
 /**
@@ -1258,8 +1261,10 @@ tfw_sched_ratio_add_srv(TfwServer *srv)
 
 	if (!(srvdesc = kzalloc(sizeof(TfwRatioSrvDesc), GFP_KERNEL)))
 		return -ENOMEM;
-	if ((r = tfw_sched_ratio_srvdesc_setup_srv(srv, srvdesc)))
+	if ((r = tfw_sched_ratio_srvdesc_setup_srv(srv, srvdesc))) {
+		kfree(srvdesc);
 		return r;
+	}
 
 	rcu_assign_pointer(srv->sched_data, srvdesc);
 
@@ -1270,6 +1275,7 @@ static void
 tfw_sched_ratio_put_srv_data(struct rcu_head *rcu)
 {
 	TfwRatioSrvDesc *srvdesc = container_of(rcu, TfwRatioSrvDesc, rcu);
+	kfree(srvdesc->conn);
 	kfree(srvdesc);
 }
 
diff --git a/tempesta_fw/t/unit/test_http_parser.c b/tempesta_fw/t/unit/test_http_parser.c
index 5bea9623d..ec8fba2d7 100644
--- a/tempesta_fw/t/unit/test_http_parser.c
+++ b/tempesta_fw/t/unit/test_http_parser.c
@@ -68,7 +68,7 @@ split_and_parse_n(unsigned char *str, int type, size_t len, size_t chunks)
 static int
 set_sample_req(unsigned char *str)
 {
-	size_t len = len = strlen(str);
+	size_t len = strlen(str);
 	int r;
 
 	if (sample_req)