net: downloader: coap: Fix retransmission logic

retransmission logic in the CoAP downloader was not correctly
implemented, causing it to not retransmit requests as expected.

Signed-off-by: Syver Haraldsen <[email protected]>

Author: SyverHaraldsen

subsys/net/lib/downloader/src/transports/coap.c

@@ -72,6 +72,8 @@ struct transport_params_coap {
 
 BUILD_ASSERT(CONFIG_DOWNLOADER_TRANSPORT_PARAMS_SIZE >= sizeof(struct transport_params_coap));
 
+static int coap_request_send(struct downloader *dl);
+
 static int coap_get_current_from_response_pkt(const struct coap_packet *cpkt)
 {
 	int block = 0;
@@ -136,6 +138,7 @@ static int coap_get_recv_timeout(struct downloader *dl, uint32_t *timeout)
 int coap_initiate_retransmission(struct downloader *dl)
 {
 	struct transport_params_coap *coap;
+	int ret;
 
 	coap = (struct transport_params_coap *)dl->transport_internal;
 
@@ -148,6 +151,12 @@ int coap_initiate_retransmission(struct downloader *dl)
 		return -1;
 	}
 
+	ret = coap_request_send(dl);
+	if (ret) {
+		LOG_DBG("coap_request_send failed, err %d", ret);
+		return -ECONNRESET;
+	}
+
 	return 0;
 }