linux-kernel - Re: [PATCH v2] mfd: wm8994: Switch to use dev_err

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Date: Thu, 21 Dec 2023 15:22:14 +0000
From: Lee Jones <lee@...nel.org>
To: yang.guang5@....com.cn
Cc: jiang.xuexin@....com.cn, chen.haonan2@....com.cn, cgel.zte@...il.com,
	patches@...nsource.cirrus.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mfd: wm8994: Switch to use dev_err_probe() helper

On Wed, 20 Dec 2023, yang.guang5@....com.cn wrote:

> From: Yang Guang <yang.guang5@....com.cn>
> 
> dev_err() can be replace with dev_err_probe() which will
> check if error code is -EPROBE_DEFER.
> 
> Signed-off-by: Chen Haonan <chen.haonan2@....com.cn>
> ---
>  drivers/mfd/wm8994-core.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)

How did you create and send this patch?

When I try to apply this, I get:

  ERROR: patch seems to be corrupt (line wrapped?)
  #37: FILE: drivers/mfd/wm8994-core.c:384:
  2.25.1
  
  ERROR: Missing Signed-off-by: line by nominal patch author 'Yang Guang <yang.guang5@....com.cn>'
  
  total: 2 errors, 0 warnings, 14 lines checked
  
  NOTE: For some of the reported defects, checkpatch may be able to
        mechanically convert to the typical style using --fix or --fix-inplace.
  
  "[PATCH v2] mfd: wm8994: Switch to use dev_err_probe() helper" has style problems, please review.

AND:

  Applying: mfd: wm8994: Switch to use dev_err_probe() helper
  error: corrupt patch at line 22
  error: could not build fake ancestor
  Patch failed at 0001 mfd: wm8994: Switch to use dev_err_probe() helper

Please fix and resubmit.

> diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
> index d5ac066f9db4..c43273527425 100644
> --- a/drivers/mfd/wm8994-core.c
> +++ b/drivers/mfd/wm8994-core.c
> @@ -378,10 +378,8 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
>  	 */
>  	ret = regulator_bulk_get(wm8994->dev, wm8994->num_supplies,
>  				 wm8994->supplies);
> -	if (ret != 0) {
> -		if (ret != -EPROBE_DEFER)
> -			dev_err(wm8994->dev, "Failed to get supplies: %d\n",
> -				ret);
> +	if (ret != 0) {
> +		dev_err_probe(wm8994->dev, ret, "Failed to get supplies\n");
>  		goto err;
>  	}
> 
> -- 
> 2.25.1

-- 
Lee Jones [李琼斯]