netdev - [PATCH net] net: ethernet: mtk-star-emac: disable napi when connect and start PHY failed in mtk_star

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Date:   Mon, 7 Nov 2022 09:21:59 +0800
From:   Zhengchao Shao <shaozhengchao@...wei.com>
To:     <netdev@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <nbd@....name>,
        <john@...ozen.org>, <sean.wang@...iatek.com>,
        <Mark-MC.Lee@...iatek.com>, <davem@...emloft.net>,
        <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
        <matthias.bgg@...il.com>
CC:     <bgolaszewski@...libre.com>, <weiyongjun1@...wei.com>,
        <yuehaibing@...wei.com>, <shaozhengchao@...wei.com>
Subject: [PATCH net] net: ethernet: mtk-star-emac: disable napi when connect and start PHY failed in mtk_star_enable()

When failed to connect to and start PHY in mtk_star_enable() for opening
device, napi isn't disabled. When open mtk star device next time, it will
reports a invalid opcode issue. Fix it. Only be compiled, not be tested.

Fixes: 8c7bd5a454ff ("net: ethernet: mtk-star-emac: new driver")
Signed-off-by: Zhengchao Shao <shaozhengchao@...wei.com>
---
 drivers/net/ethernet/mediatek/mtk_star_emac.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c
index 7e890f81148e..7050351250b7 100644
--- a/drivers/net/ethernet/mediatek/mtk_star_emac.c
+++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c
@@ -1026,6 +1026,8 @@ static int mtk_star_enable(struct net_device *ndev)
 	return 0;
 
 err_free_irq:
+	napi_disable(&priv->rx_napi);
+	napi_disable(&priv->tx_napi);
 	free_irq(ndev->irq, ndev);
 err_free_skbs:
 	mtk_star_free_rx_skbs(priv);
-- 
2.17.1