linux-kernel - Re: [PATCH] Input: bcm_iproc_tsc - Make use of the helper function dev_err

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Message-ID: <17b3aba7-4093-3ce1-de16-5cecb29391cd@broadcom.com>
Date:   Thu, 16 Sep 2021 10:02:31 -0700
From:   Ray Jui <ray.jui@...adcom.com>
To:     Cai Huoqing <caihuoqing@...du.com>
Cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com, linux-input@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Input: bcm_iproc_tsc - Make use of the helper function
 dev_err_probe()



On 9/16/2021 8:31 AM, Cai Huoqing wrote:
> When possible use dev_err_probe help to properly deal with the
> PROBE_DEFER error, the benefit is that DEFER issue will be logged
> in the devices_deferred debugfs file.
> Using dev_err_probe() can reduce code size, and the error value
> gets printed.
> 
> Signed-off-by: Cai Huoqing <caihuoqing@...du.com>
> ---
>  drivers/input/touchscreen/bcm_iproc_tsc.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/input/touchscreen/bcm_iproc_tsc.c b/drivers/input/touchscreen/bcm_iproc_tsc.c
> index 7de1fd24ce36..c6aaeaee1d12 100644
> --- a/drivers/input/touchscreen/bcm_iproc_tsc.c
> +++ b/drivers/input/touchscreen/bcm_iproc_tsc.c
> @@ -441,12 +441,9 @@ static int iproc_ts_probe(struct platform_device *pdev)
>  	}
>  
>  	priv->tsc_clk = devm_clk_get(&pdev->dev, "tsc_clk");
> -	if (IS_ERR(priv->tsc_clk)) {
> -		error = PTR_ERR(priv->tsc_clk);
> -		dev_err(&pdev->dev,
> -			"failed getting clock tsc_clk: %d\n", error);
> -		return error;
> -	}
> +	if (IS_ERR(priv->tsc_clk))
> +		return dev_err_probe(&pdev->dev, PTR_ERR(priv->tsc_clk),
> +				     "failed getting clock tsc_clk\n");
>  
>  	priv->pdev = pdev;
>  	error = iproc_get_tsc_config(&pdev->dev, priv);
> 

Improvement looks good to me. Thanks.

Acked-by: Ray Jui <ray.jui@...adcom.com>

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