From b571757bcda481cdcc556b5b1d4541c468164ffc Mon Sep 17 00:00:00 2001
From: Gunar Schorcht <gunar@schorcht.net>
Date: Sat, 3 Aug 2019 17:48:57 +0200
Subject: [PATCH] cpu/esp32: fix of the return code in esp_wifi_send

---
 cpu/esp32/esp-wifi/esp_wifi_netdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cpu/esp32/esp-wifi/esp_wifi_netdev.c b/cpu/esp32/esp-wifi/esp_wifi_netdev.c
index 551937f381..ecdd332cfb 100644
--- a/cpu/esp32/esp-wifi/esp_wifi_netdev.c
+++ b/cpu/esp32/esp-wifi/esp_wifi_netdev.c
@@ -336,6 +336,7 @@ static int _esp_wifi_send(netdev_t *netdev, const iolist_t *iolist)
 
     /* send the the packet to the peer(s) mac address */
     if (esp_wifi_internal_tx(ESP_IF_WIFI_STA, dev->tx_buf, dev->tx_len) == ESP_OK) {
+        ret = dev->tx_len;
         netdev->event_callback(netdev, NETDEV_EVENT_TX_COMPLETE);
     }
     else {