linux-kernel - Re: [PATCH] clk: imx: scu: Use common error handling code in __imx_clk_gpr

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Date: Fri, 2 Feb 2024 20:45:37 +0200
From: Abel Vesa <abel.vesa@...aro.org>
To: Markus Elfring <Markus.Elfring@....de>
Cc: Kuan-Wei Chiu <visitorckw@...il.com>, Abel Vesa <abelvesa@...nel.org>,
	Fabio Estevam <festevam@...il.com>,
	Michael Turquette <mturquette@...libre.com>,
	Peng Fan <peng.fan@....com>, Sascha Hauer <s.hauer@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>, Stephen Boyd <sboyd@...nel.org>,
	kernel@...gutronix.de, linux-imx@....com, linux-clk@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	LKML <linux-kernel@...r.kernel.org>, cocci@...ia.fr
Subject: Re: [PATCH] clk: imx: scu: Use common error handling code in
 __imx_clk_gpr_scu()

On 23-12-22 10:23:13, Markus Elfring wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Fri, 22 Dec 2023 10:05:32 +0100
> 
> Use another label so that a bit of exception handling can be better reused
> at the end of this function.

Please don't send patches as reply to other(s) patches.

> 
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---
>  drivers/clk/imx/clk-scu.c | 13 +++++++------
>  1 file changed, 7 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c
> index e48a904c0013..4ca9dccf3d3b 100644
> --- a/drivers/clk/imx/clk-scu.c
> +++ b/drivers/clk/imx/clk-scu.c
> @@ -882,19 +882,19 @@ struct clk_hw *__imx_clk_gpr_scu(const char *name, const char * const *parent_na
>  		return ERR_PTR(-ENOMEM);
> 
>  	if (!imx_scu_clk_is_valid(rsrc_id)) {
> -		kfree(clk_node);
> -		return ERR_PTR(-EINVAL);
> +		ret = -EINVAL;
> +		goto free_clk_node;
>  	}
> 
>  	if (!imx_clk_is_resource_owned(rsrc_id)) {
> -		kfree(clk_node);
> -		return NULL;
> +		ret = 0;
> +		goto free_clk_node;
>  	}
> 
>  	clk = kzalloc(sizeof(*clk), GFP_KERNEL);
>  	if (!clk) {
> -		kfree(clk_node);
> -		return ERR_PTR(-ENOMEM);
> +		ret = -ENOMEM;
> +		goto free_clk_node;
>  	}
> 
>  	clk->rsrc_id = rsrc_id;
> @@ -922,6 +922,7 @@ struct clk_hw *__imx_clk_gpr_scu(const char *name, const char * const *parent_na
>  	ret = clk_hw_register(NULL, hw);
>  	if (ret) {
>  		kfree(clk);
> +free_clk_node:
>  		kfree(clk_node);
>  		hw = ERR_PTR(ret);
>  	} else {
> --
> 2.43.0
>