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Merge pull request #11186 from gschorcht/cpu/esp32/esp_eth/iol_len

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cpu/esp32: esp_eth doesn't call memcpy if iol_len is 0
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Martine Lenders 2019-04-02 17:51:26 +02:00 committed by GitHub
commit 2d906de873
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1 changed files with 4 additions and 2 deletions
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cpu/esp32/esp-eth/esp_eth_netdev.c
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@ -200,9 +200,11 @@ static int _esp_eth_send(netdev_t *netdev, const iolist_t *iolist)
mutex_unlock(&dev->dev_lock); mutex_unlock(&dev->dev_lock);
return -EOVERFLOW; return -EOVERFLOW;
} }
if (iol->iol_len) {
memcpy (dev->tx_buf + dev->tx_len, iol->iol_base, iol->iol_len); memcpy (dev->tx_buf + dev->tx_len, iol->iol_base, iol->iol_len);
dev->tx_len += iol->iol_len; dev->tx_len += iol->iol_len;
} }
}
#if ENABLE_DEBUG #if ENABLE_DEBUG
printf ("%s: send %d byte\n", __func__, dev->tx_len); printf ("%s: send %d byte\n", __func__, dev->tx_len);