linux-kernel - Re: [PATCH v3 9/9] i2c: synquacer: Use dev_err

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Date:   Tue, 8 Aug 2023 10:37:42 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Liao Chang <liaochang1@...wei.com>, andi.shyti@...nel.org,
        florian.fainelli@...adcom.com, rjui@...adcom.com,
        sbranden@...adcom.com, bcm-kernel-feedback-list@...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
Cc:     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 v3 9/9] i2c: synquacer: Use dev_err_probe in probe
 function

On 08/08/2023 03:29, 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>


>  	i2c->base = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(i2c->base))
> @@ -582,10 +578,8 @@ static int synquacer_i2c_probe(struct platform_device *pdev)
>  
>  	ret = devm_request_irq(&pdev->dev, i2c->irq, synquacer_i2c_isr,
>  			       0, dev_name(&pdev->dev), i2c);
> -	if (ret < 0) {
> -		dev_err(&pdev->dev, "cannot claim IRQ %d\n", i2c->irq);
> -		return ret;
> -	}
> +	if (ret < 0)
> +		return dev_err_probe(&pdev->dev, ret, "cannot claim IRQ %d\n", i2c->irq);
>  

I don't think this is needed:
https://lore.kernel.org/all/20230721094641.77189-1-frank.li@vivo.com/

Best regards,
Krzysztof