ieee802154: cc2520: add rc code in cc2520_tx()

[ Upstream commit ffd7bdddaab193c38416fd5dd416d065517d266e ]

The rc code is 0 at the error path "status & CC2520_STATUS_TX_UNDERFLOW".
Assign rc code with '-EINVAL' at this error path to fix it.

Signed-off-by: Li Qiong <liqiong@nfschina.com>
Link: https://lore.kernel.org/r/20220829071259.18330-1-liqiong@nfschina.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ieee802154/cc2520.c b/drivers/net/ieee802154/cc2520.c
index 89c046b204e0c0181bbaf4f15a9c11cb7fa39fdb..4517517215f2bd6a8e69af72154c8316f9fed984 100644 (file)
--- a/drivers/net/ieee802154/cc2520.c
+++ b/drivers/net/ieee802154/cc2520.c
@@ -504,6 +504,7 @@ cc2520_tx(struct ieee802154_hw *hw, struct sk_buff *skb)
                goto err_tx;
 
        if (status & CC2520_STATUS_TX_UNDERFLOW) {
+               rc = -EINVAL;
                dev_err(&priv->spi->dev, "cc2520 tx underflow exception\n");
                goto err_tx;
        }