linux-kernel - Re: [PATCH] i2c: imx: Use dev_err_probe() to simplify error handling

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Date:   Wed, 12 Aug 2020 07:39:43 +0200
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Anson Huang <Anson.Huang@....com>
Cc:     linux@...pel-privat.de, kernel@...gutronix.de, shawnguo@...nel.org,
        s.hauer@...gutronix.de, festevam@...il.com,
        linux-i2c@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Linux-imx@....com
Subject: Re: [PATCH] i2c: imx: Use dev_err_probe() to simplify error handling

On Wed, Aug 12, 2020 at 11:45:54AM +0800, Anson Huang wrote:
> dev_err_probe() can reduce code size, uniform error handling and record the
> defer probe reason etc., use it to simplify the code.
> 
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> ---
>  drivers/i2c/busses/i2c-imx.c | 8 +++-----
>  1 file changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
> index 0ab5381..63f4367 100644
> --- a/drivers/i2c/busses/i2c-imx.c
> +++ b/drivers/i2c/busses/i2c-imx.c
> @@ -1159,11 +1159,9 @@ static int i2c_imx_probe(struct platform_device *pdev)
>  
>  	/* Get I2C clock */
>  	i2c_imx->clk = devm_clk_get(&pdev->dev, NULL);
> -	if (IS_ERR(i2c_imx->clk)) {
> -		if (PTR_ERR(i2c_imx->clk) != -EPROBE_DEFER)
> -			dev_err(&pdev->dev, "can't get I2C clock\n");
> -		return PTR_ERR(i2c_imx->clk);
> -	}
> +	if (IS_ERR(i2c_imx->clk))
> +		return dev_err_probe(&pdev->dev, PTR_ERR(i2c_imx->clk),
> +				     "can't get I2C clock\n");
>  
>  	ret = clk_prepare_enable(i2c_imx->clk);
>  	if (ret) {
> -- 

Acked-by: Oleksij Rempel <o.rempel@...gutronix.de>

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