From ef639df76fa03518480fdd210a14d8b146092d78 Mon Sep 17 00:00:00 2001
From: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Date: Fri, 22 Nov 2024 19:44:12 +0100
Subject: [PATCH] drivers/at86rf215: return ENETDOWN when interface is down

---
 drivers/at86rf215/at86rf215.c        | 2 +-
 drivers/at86rf215/at86rf215_netdev.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/at86rf215/at86rf215.c b/drivers/at86rf215/at86rf215.c
index 9df5cda50b..c107948fef 100644
--- a/drivers/at86rf215/at86rf215.c
+++ b/drivers/at86rf215/at86rf215.c
@@ -247,7 +247,7 @@ static bool _tx_ongoing(at86rf215_t *dev)
 int at86rf215_tx_prepare(at86rf215_t *dev)
 {
     if (dev->state == AT86RF215_STATE_SLEEP) {
-        return -EAGAIN;
+        return -ENETDOWN;
     }
 
     if (_tx_ongoing(dev)) {
diff --git a/drivers/at86rf215/at86rf215_netdev.c b/drivers/at86rf215/at86rf215_netdev.c
index 74eb08b65e..99dd571823 100644
--- a/drivers/at86rf215/at86rf215_netdev.c
+++ b/drivers/at86rf215/at86rf215_netdev.c
@@ -149,10 +149,10 @@ static int _send(netdev_t *netdev, const iolist_t *iolist)
 {
     netdev_ieee802154_t *netdev_ieee802154 = container_of(netdev, netdev_ieee802154_t, netdev);
     at86rf215_t *dev = container_of(netdev_ieee802154, at86rf215_t, netdev);
-    size_t len = 0;
 
-    if (at86rf215_tx_prepare(dev)) {
-        return -EBUSY;
+    ssize_t len = at86rf215_tx_prepare(dev);
+    if (len) {
+        return len;
     }
 
     /* load packet data into FIFO */