linux-kernel - Re: [PATCH] usb: common: usb-conn-gpio: Simplify some error message

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Date:   Mon, 8 Aug 2022 16:35:11 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     <linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>,
        <linux-usb@...r.kernel.org>
Subject: Re: [PATCH] usb: common: usb-conn-gpio: Simplify some error message

On Sat, 2022-08-06 at 07:19 +0200, Christophe JAILLET wrote:
> dev_err_probe() already prints the error code in a human readable
> way, so
> there is no need to duplicate it as a numerical value at the end of
> the
> message.
> 
> Fixes: ddaf0d6dc467 ("usb: common: usb-conn-gpio: use dev_err_probe()
> to print log")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
>  drivers/usb/common/usb-conn-gpio.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/usb/common/usb-conn-gpio.c
> b/drivers/usb/common/usb-conn-gpio.c
> index b39c9f1c375d..44c5127175b7 100644
> --- a/drivers/usb/common/usb-conn-gpio.c
> +++ b/drivers/usb/common/usb-conn-gpio.c
> @@ -208,10 +208,9 @@ static int usb_conn_probe(struct platform_device
> *pdev)
>  	if (PTR_ERR(info->vbus) == -ENODEV)
>  		info->vbus = NULL;
>  
> -	if (IS_ERR(info->vbus)) {
> -		ret = PTR_ERR(info->vbus);
> -		return dev_err_probe(dev, ret, "failed to get vbus
> :%d\n", ret);
> -	}
> +	if (IS_ERR(info->vbus))
> +		return dev_err_probe(dev, PTR_ERR(info->vbus),
> +				     "failed to get vbus\n");
How about putting dev_err_probe() in a single line? it doesn't exceed
100 chars.

>  
>  	info->role_sw = usb_role_switch_get(dev);
>  	if (IS_ERR(info->role_sw))