Re: [PATCH] clk: imx: scu: Use common error handling code in __imx_clk_gpr_scu()

From: Abel Vesa <abel.vesa@linaro.org>
To: Markus Elfring <Markus.Elfring@web.de>
Cc: Kuan-Wei Chiu <visitorckw@gmail.com>,
	Abel Vesa <abelvesa@kernel.org>,
	Fabio Estevam <festevam@gmail.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Peng Fan <peng.fan@nxp.com>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>, Stephen Boyd <sboyd@kernel.org>,
	kernel@pengutronix.de, linux-imx@nxp.com,
	linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	LKML <linux-kernel@vger.kernel.org>,
	cocci@inria.fr
Subject: Re: [PATCH] clk: imx: scu: Use common error handling code in __imx_clk_gpr_scu()
Date: Fri, 2 Feb 2024 20:45:37 +0200	[thread overview]
Message-ID: <Zb04UUeE/cU9HtKZ@linaro.org> (raw)
In-Reply-To: <0e906ec6-fe73-4dbd-b555-a2c03b6e1030@web.de>

On 23-12-22 10:23:13, Markus Elfring wrote:
> From: Markus Elfring <elfring@users.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@users.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
> 

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