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Date:   Sat, 10 Sep 2022 17:19:17 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Li Qiong <liqiong@...china.com>,
        Stefan Schmidt <stefan@...enfreihafen.org>,
        Sasha Levin <sashal@...nel.org>, varkabhadram@...il.com,
        alex.aring@...il.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, linux-wpan@...r.kernel.org,
        netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 4/8] ieee802154: cc2520: add rc code in cc2520_tx()

From: Li Qiong <liqiong@...china.com>

[ 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@...china.com>
Link: https://lore.kernel.org/r/20220829071259.18330-1-liqiong@nfschina.com
Signed-off-by: Stefan Schmidt <stefan@...enfreihafen.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ieee802154/cc2520.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ieee802154/cc2520.c b/drivers/net/ieee802154/cc2520.c
index 0c89d3edf901c..fa3a4db517d69 100644
--- a/drivers/net/ieee802154/cc2520.c
+++ b/drivers/net/ieee802154/cc2520.c
@@ -512,6 +512,7 @@ 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;
 	}
-- 
2.35.1

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