linux-kernel - Re: [PATCH 8/9] i2c: imx-lpi2c: Use dev_err

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Date:   Sat, 5 Aug 2023 00:16:44 +0200
From:   Andi Shyti <andi.shyti@...nel.org>
To:     Liao Chang <liaochang1@...wei.com>
Cc:     florian.fainelli@...adcom.com,
        bcm-kernel-feedback-list@...adcom.com, rjui@...adcom.com,
        sbranden@...adcom.com, yangyicong@...ilicon.com,
        aisheng.dong@....com, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        kblaiech@...dia.com, asmaa@...dia.com, loic.poulain@...aro.org,
        rfoss@...nel.org, ardb@...nel.org, gcherian@...vell.com,
        linux-i2c@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 8/9] i2c: imx-lpi2c: Use dev_err_probe in probe function

On Wed, Aug 02, 2023 at 05:57:36PM +0800, Liao Chang wrote:
> Use the dev_err_probe function instead of dev_err in the probe function
> so that the printed messge includes the return value and also handles
> -EPROBE_DEFER nicely.
> 
> Signed-off-by: Liao Chang <liaochang1@...wei.com>
> ---
>  drivers/i2c/busses/i2c-imx-lpi2c.c | 12 ++++--------
>  1 file changed, 4 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-imx-lpi2c.c
> index c3287c887c6f..bfa788b3775b 100644
> --- a/drivers/i2c/busses/i2c-imx-lpi2c.c
> +++ b/drivers/i2c/busses/i2c-imx-lpi2c.c
> @@ -569,10 +569,8 @@ static int lpi2c_imx_probe(struct platform_device *pdev)
>  		sizeof(lpi2c_imx->adapter.name));
>  
>  	ret = devm_clk_bulk_get_all(&pdev->dev, &lpi2c_imx->clks);
> -	if (ret < 0) {
> -		dev_err(&pdev->dev, "can't get I2C peripheral clock, ret=%d\n", ret);
> -		return ret;
> -	}
> +	if (ret < 0)
> +		return dev_err_probe(&pdev->dev, ret, "can't get I2C peripheral clock\n");

you cut on this because the line was going over 100 characters? :)

In theory you shouldn't change the print message when doing such
changes and you can still split it as:

		return dev_err_probe(&pdev->dev, ret,
				     "can't get I2C peripheral clock, ret=%d\n",
				     ret);

and you're even within the 80 characters.

Sorry, I missed it in the previous version, mind resending it?

Andi