linux-kernel - Re: [PATCH] leds: pwm: silently error out on EPROBE

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Message-ID: <b9d1e9bf-956a-9560-d223-2b4c5a76b14f@gmail.com>
Date:   Sat, 8 Sep 2018 22:49:06 +0200
From:   Jacek Anaszewski <jacek.anaszewski@...il.com>
To:     Jerome Brunet <jbrunet@...libre.com>, Pavel Machek <pavel@....cz>
Cc:     linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] leds: pwm: silently error out on EPROBE_DEFER

Hi Jerome,

Thank you for the patch.

On 09/06/2018 03:59 PM, Jerome Brunet wrote:
> When probing, if we fail to get the pwm due to probe deferal, we shouldn't
> print an error message. Just be silent in this case.
> 
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> ---
>  drivers/leds/leds-pwm.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
> index df80c89ebe7f..5d3faae51d59 100644
> --- a/drivers/leds/leds-pwm.c
> +++ b/drivers/leds/leds-pwm.c
> @@ -100,8 +100,9 @@ static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv,
>  		led_data->pwm = devm_pwm_get(dev, led->name);
>  	if (IS_ERR(led_data->pwm)) {
>  		ret = PTR_ERR(led_data->pwm);
> -		dev_err(dev, "unable to request PWM for %s: %d\n",
> -			led->name, ret);
> +		if (ret != -EPROBE_DEFER)
> +			dev_err(dev, "unable to request PWM for %s: %d\n",
> +				led->name, ret);
>  		return ret;
>  	}
>  
>

Applied.

-- 
Best regards,
Jacek Anaszewski