net: ethernet: mtk_eth_soc: fix error handling in mtk_open()
If mtk_start_dma() fails, invoke phylink_disconnect_phy() to perform
cleanup. phylink_disconnect_phy() contains the put_device action. If
phylink_disconnect_phy is not performed, the Kref of netdev will leak.
Fixes: b8fc9f3082
("net: ethernet: mediatek: Add basic PHYLINK support")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20221117111356.161547-1-liujian56@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -2996,8 +2996,10 @@ static int mtk_open(struct net_device *dev)
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int i;
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err = mtk_start_dma(eth);
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if (err)
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if (err) {
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phylink_disconnect_phy(mac->phylink);
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return err;
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}
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for (i = 0; i < ARRAY_SIZE(eth->ppe); i++)
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mtk_ppe_start(eth->ppe[i]);
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