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b0b044caa7
Backport patches from net-next which fix possible memory and resource leaks in the error codepaths of WED initialization. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
74 lines
2.1 KiB
Diff
74 lines
2.1 KiB
Diff
From b3d0d98179d62f9d55635a600679c4fa362baf8d Mon Sep 17 00:00:00 2001
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From: Yang Yingliang <yangyingliang@huawei.com>
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Date: Mon, 17 Oct 2022 11:51:54 +0800
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Subject: [PATCH 1/3] net: ethernet: mtk_eth_soc: fix possible memory leak in
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mtk_probe()
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If mtk_wed_add_hw() has been called, mtk_wed_exit() needs be called
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in error path or removing module to free the memory allocated in
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mtk_wed_add_hw().
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Fixes: 804775dfc288 ("net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)")
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Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/ethernet/mediatek/mtk_eth_soc.c | 17 ++++++++++++-----
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1 file changed, 12 insertions(+), 5 deletions(-)
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--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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@@ -4008,19 +4008,23 @@ static int mtk_probe(struct platform_dev
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eth->irq[i] = platform_get_irq(pdev, i);
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if (eth->irq[i] < 0) {
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dev_err(&pdev->dev, "no IRQ%d resource found\n", i);
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- return -ENXIO;
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+ err = -ENXIO;
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+ goto err_wed_exit;
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}
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}
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for (i = 0; i < ARRAY_SIZE(eth->clks); i++) {
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eth->clks[i] = devm_clk_get(eth->dev,
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mtk_clks_source_name[i]);
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if (IS_ERR(eth->clks[i])) {
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- if (PTR_ERR(eth->clks[i]) == -EPROBE_DEFER)
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- return -EPROBE_DEFER;
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+ if (PTR_ERR(eth->clks[i]) == -EPROBE_DEFER) {
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+ err = -EPROBE_DEFER;
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+ goto err_wed_exit;
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+ }
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if (eth->soc->required_clks & BIT(i)) {
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dev_err(&pdev->dev, "clock %s not found\n",
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mtk_clks_source_name[i]);
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- return -EINVAL;
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+ err = -EINVAL;
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+ goto err_wed_exit;
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}
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eth->clks[i] = NULL;
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}
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@@ -4031,7 +4035,7 @@ static int mtk_probe(struct platform_dev
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err = mtk_hw_init(eth);
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if (err)
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- return err;
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+ goto err_wed_exit;
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eth->hwlro = MTK_HAS_CAPS(eth->soc->caps, MTK_HWLRO);
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@@ -4129,6 +4133,8 @@ err_free_dev:
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mtk_free_dev(eth);
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err_deinit_hw:
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mtk_hw_deinit(eth);
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+err_wed_exit:
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+ mtk_wed_exit();
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return err;
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}
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@@ -4148,6 +4154,7 @@ static int mtk_remove(struct platform_de
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phylink_disconnect_phy(mac->phylink);
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}
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+ mtk_wed_exit();
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mtk_hw_deinit(eth);
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netif_napi_del(ð->tx_napi);
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