linux-kernel - Re: [PATCH] i2c: i2c-dev: Create 'name' attribute automatically

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Message-ID: <52440E54.5080401@roeck-us.net>
Date:	Thu, 26 Sep 2013 03:37:08 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Wolfram Sang <wsa@...-dreams.de>
CC:	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i2c: i2c-dev: Create 'name' attribute automatically

On 09/26/2013 01:28 AM, Wolfram Sang wrote:
> Hi,
>
>>> What race condition?
>>>
>>
>> Userspace trying to access the name attribute before it is created.
>> See http://kroah.com/log/blog/2013/06/26/how-to-create-a-sysfs-file-correctly/
>
> Thanks!
>
>>> Have you tried this with two instances? I don't think it will work since
>>> class_register modifies the class struct.
>>>
>> Half a dozen instances, actually. Unless I am missing something, seems to be
>
> My bad. Sorry for the noise.
>
>> Anyway, the patch is obsolete; one is supposed to use class->dev_groups now.
>
> Are you willing to update the patch?
>

Sure. Give me a couple of days.

Thanks,
Guenter


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