linux-kernel - Re: [PATCH 27/31] clk: mediatek: Unregister clks in mtk_clk_simple

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Date:   Wed, 26 Jan 2022 16:19:09 +0800
From:   Miles Chen <miles.chen@...iatek.com>
To:     <wenst@...omium.org>
CC:     <chun-jie.chen@...iatek.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-clk@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <matthias.bgg@...il.com>,
        <mturquette@...libre.com>, <sboyd@...nel.org>
Subject: Re: [PATCH 27/31] clk: mediatek: Unregister clks in mtk_clk_simple_probe() error path

> Until now the mediatek clk driver library did not have any way to
> unregister clks, and so all drivers did not do proper cleanup in
> their error paths.
> 
> Now that the library does have APIs to unregister clks, use them
> in the error path of mtk_clk_simple_probe() to do proper cleanup.
> 
> Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>

Reviewed-by: Miles Chen <miles.chen@...iatek.com>

> ---
>  drivers/clk/mediatek/clk-mtk.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c
> index e1977c8e130a..6d0b8842971b 100644
> --- a/drivers/clk/mediatek/clk-mtk.c
> +++ b/drivers/clk/mediatek/clk-mtk.c
> @@ -434,12 +434,14 @@ int mtk_clk_simple_probe(struct platform_device *pdev)
>  
>  	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
>  	if (r)
> -		goto free_data;
> +		goto unregister_clks;
>  
>  	platform_set_drvdata(pdev, clk_data);
>  
>  	return r;
>  
> +unregister_clks:
> +	mtk_clk_unregister_gates(mcd->clks, mcd->num_clks, clk_data);
>  free_data:
>  	mtk_free_clk_data(clk_data);
>  	return r;
> -- 
> 2.35.0.rc0.227.g00780c9af4-goog
> 
>