linux-kernel - Re: [PATCH] clk: s2mps11: Check of_clk_add_hw

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Date: Mon, 1 Apr 2024 14:06:14 +0200
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Aleksandr Aprelkov <aaprelkov@...rgate.com>,
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: Michael Turquette <mturquette@...libre.com>,
 Stephen Boyd <sboyd@...nel.org>, linux-kernel@...r.kernel.org,
 linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
 lvc-project@...uxtesting.org
Subject: Re: [PATCH] clk: s2mps11: Check of_clk_add_hw_provider() result

Le 01/04/2024 à 12:38, Aleksandr Aprelkov a écrit :
> There is no check if error occurs in clock provider registration.
> 
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
> 
> Fixes: b228fad50c00 ("clk: s2mps11: Migrate to clk_hw based OF and registration APIs")
> Signed-off-by: Aleksandr Aprelkov <aaprelkov@...rgate.com>
> ---
>   drivers/clk/clk-s2mps11.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
> index 38c456540d1b..f9ce413b6c02 100644
> --- a/drivers/clk/clk-s2mps11.c
> +++ b/drivers/clk/clk-s2mps11.c
> @@ -187,8 +187,10 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
>   	}
>   
>   	clk_data->num = S2MPS11_CLKS_NUM;
> -	of_clk_add_hw_provider(s2mps11_clks->clk_np, of_clk_hw_onecell_get,
> +	ret = of_clk_add_hw_provider(s2mps11_clks->clk_np, of_clk_hw_onecell_get,
>   			       clk_data);

Hi,

Nit: "clk_data);" is wrongly aligned now.

CJ

> +	if (ret < 0)
> +		goto err_reg;
>   
>   	platform_set_drvdata(pdev, s2mps11_clks);
>