Re: [PATCH] phy: samsung: exynos5250-sata: fix missing device put in probe error paths

From: Vinod Koul
Date: Wed Apr 13 2022 - 05:51:52 EST


On 09-03-22, 18:00, Krzysztof Kozlowski wrote:
> The actions of of_find_i2c_device_by_node() in probe function should be
> reversed in error paths by putting the reference to obtained device.

This fails to apply on phy-fixes, pls rebase

>
> Fixes: bcff4cba41bc ("PHY: Exynos: Add Exynos5250 SATA PHY driver")
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
>
> ---
>
> Rebased on top of (although it is independent, no conflicts):
> https://lore.kernel.org/linux-samsung-soc/20220309124856.32632-1-linmq006@xxxxxxxxx/T/#u
> ---
> drivers/phy/samsung/phy-exynos5250-sata.c | 20 ++++++++++++++------
> 1 file changed, 14 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/phy/samsung/phy-exynos5250-sata.c b/drivers/phy/samsung/phy-exynos5250-sata.c
> index 6c305a3fe187..595adba5fb8f 100644
> --- a/drivers/phy/samsung/phy-exynos5250-sata.c
> +++ b/drivers/phy/samsung/phy-exynos5250-sata.c
> @@ -196,20 +196,21 @@ static int exynos_sata_phy_probe(struct platform_device *pdev)
> sata_phy->phyclk = devm_clk_get(dev, "sata_phyctrl");
> if (IS_ERR(sata_phy->phyclk)) {
> dev_err(dev, "failed to get clk for PHY\n");
> - return PTR_ERR(sata_phy->phyclk);
> + ret = PTR_ERR(sata_phy->phyclk);
> + goto put_dev;
> }
>
> ret = clk_prepare_enable(sata_phy->phyclk);
> if (ret < 0) {
> dev_err(dev, "failed to enable source clk\n");
> - return ret;
> + goto put_dev;
> }
>
> sata_phy->phy = devm_phy_create(dev, NULL, &exynos_sata_phy_ops);
> if (IS_ERR(sata_phy->phy)) {
> - clk_disable_unprepare(sata_phy->phyclk);
> dev_err(dev, "failed to create PHY\n");
> - return PTR_ERR(sata_phy->phy);
> + ret = PTR_ERR(sata_phy->phy);
> + goto clk_disable;
> }
>
> phy_set_drvdata(sata_phy->phy, sata_phy);
> @@ -217,11 +218,18 @@ static int exynos_sata_phy_probe(struct platform_device *pdev)
> phy_provider = devm_of_phy_provider_register(dev,
> of_phy_simple_xlate);
> if (IS_ERR(phy_provider)) {
> - clk_disable_unprepare(sata_phy->phyclk);
> - return PTR_ERR(phy_provider);
> + ret = PTR_ERR(phy_provider);
> + goto clk_disable;
> }
>
> return 0;
> +
> +clk_disable:
> + clk_disable_unprepare(sata_phy->phyclk);
> +put_dev:
> + put_device(&sata_phy->client->dev);
> +
> + return ret;
> }
>
> static const struct of_device_id exynos_sata_phy_of_match[] = {
> --
> 2.32.0

--
~Vinod