linux-kernel - Re: [PATCH] staging: comedi: cleanup all the comedi

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Date:	Fri, 18 May 2012 18:48:07 +0100
From:	Ian Abbott <abbotti@....co.uk>
To:	H Hartley Sweeten <hartleys@...ionengravers.com>
CC:	Ian Abbott <ian.abbott@....co.uk>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	"devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
	"fmhess@...rs.sourceforge.net" <fmhess@...rs.sourceforge.net>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] staging: comedi: cleanup all the comedi_driver 'detach'
 functions

On 2012-05-18 17:56, H Hartley Sweeten wrote:
> Can you test this patch and let me know what the resulting output
> is? You may need to change the dev_dbg to dev_info or something
> else if you don't have the proper kernel debugging enabled.

> diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
> index 1c3d638..d6bb1f9 100644
> --- a/drivers/staging/comedi/drivers.c
> +++ b/drivers/staging/comedi/drivers.c
> @@ -91,11 +91,14 @@ static void cleanup_device(struct comedi_device *dev)
>   static void __comedi_device_detach(struct comedi_device *dev)
>   {
>   	dev->attached = 0;
> -	if (dev->driver)
> +	if (dev->driver) {
>   		dev->driver->detach(dev);
> -	else
> -		printk(KERN_WARNING
> +		dev_dbg(dev->class_dev, "%s detached\n",
> +			dev->driver->driver_name);
> +	} else {
> +		dev_warn(dev->class_dev,
>   		       "BUG: dev->driver=NULL in comedi_device_detach()\n");
> +	}
>   	cleanup_device(dev);
>   }

It works, but I'd prefer dev_info over dev_dbg.

-- 
-=( Ian Abbott @ MEV Ltd.    E-mail: <abbotti@....co.uk>        )=-
-=( Tel: +44 (0)161 477 1898   FAX: +44 (0)161 718 3587         )=-
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