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net: ethernet: mtk_eth_soc: fix possible memory leak in mtk_probe()

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If mtk_wed_add_hw() has been called, mtk_wed_exit() needs be called
in error path or removing module to free the memory allocated in
mtk_wed_add_hw().

Fixes: 804775dfc2 ("net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yang Yingliang 2022-10-17 11:51:54 +08:00 committed by David S. Miller
parent 2d1f274b95
commit b3d0d98179
1 changed files with 12 additions and 5 deletions
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17
drivers/net/ethernet/mediatek/mtk_eth_soc.c
View File

@ -4060,19 +4060,23 @@ static int mtk_probe(struct platform_device *pdev)
eth->irq[i] = platform_get_irq(pdev, i);
if (eth->irq[i] < 0) {
dev_err(&pdev->dev, "no IRQ%d resource found\n", i);
return -ENXIO;
err = -ENXIO;
goto err_wed_exit;
}
}
for (i = 0; i < ARRAY_SIZE(eth->clks); i++) {
eth->clks[i] = devm_clk_get(eth->dev,
mtk_clks_source_name[i]);
if (IS_ERR(eth->clks[i])) {
if (PTR_ERR(eth->clks[i]) == -EPROBE_DEFER)
return -EPROBE_DEFER;
if (PTR_ERR(eth->clks[i]) == -EPROBE_DEFER) {
err = -EPROBE_DEFER;
goto err_wed_exit;
}
if (eth->soc->required_clks & BIT(i)) {
dev_err(&pdev->dev, "clock %s not found\n",
mtk_clks_source_name[i]);
return -EINVAL;
err = -EINVAL;
goto err_wed_exit;
}
eth->clks[i] = NULL;
}
@ -4083,7 +4087,7 @@ static int mtk_probe(struct platform_device *pdev)
err = mtk_hw_init(eth);
if (err)
return err;
goto err_wed_exit;
eth->hwlro = MTK_HAS_CAPS(eth->soc->caps, MTK_HWLRO);
@ -4179,6 +4183,8 @@ err_free_dev:
mtk_free_dev(eth);
err_deinit_hw:
mtk_hw_deinit(eth);
err_wed_exit:
mtk_wed_exit();
return err;
}
@ -4198,6 +4204,7 @@ static int mtk_remove(struct platform_device *pdev)
phylink_disconnect_phy(mac->phylink);
}
mtk_wed_exit();
mtk_hw_deinit(eth);
netif_napi_del(&eth->tx_napi);