linux-kernel - Re: [PATCH 3.12 140/176] gpio: sysfs: fix gpio device-attribute leak

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Message-ID: <54C92072.9080404@suse.cz>
Date:	Wed, 28 Jan 2015 18:46:26 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	Johan Hovold <johan@...nel.org>
CC:	stable@...r.kernel.org, linux-kernel@...r.kernel.org,
	Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH 3.12 140/176] gpio: sysfs: fix gpio device-attribute leak

On 01/28/2015, 05:10 PM, Johan Hovold wrote:
> On Wed, Jan 28, 2015 at 03:29:30PM +0100, Jiri Slaby wrote:
>> From: Johan Hovold <johan@...nel.org>
>>
>> 3.12-stable review patch.  If anyone has any objections, please let me know.
>>
>> ===============
>>
>> commit 0915e6feb38de8d3601819992a5bd050201a56fa upstream.
>>
>> The gpio device attributes were never destroyed when the gpio was
>> unexported (or on export failures).
>>
>> Use device_create_with_groups() to create the default device attributes
>> of the gpio class device. Note that this also fixes the
>> attribute-creation race with userspace for these attributes.
>>
>> Remove contingent attributes in export error path and on unexport.
>>
>> Fixes: d8f388d8dc8d ("gpio: sysfs interface")
>> Signed-off-by: Johan Hovold <johan@...nel.org>
>> Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
>> Signed-off-by: Jiri Slaby <jslaby@...e.cz>
> 
> There was a mistake in the 3.14 (and 3.12) backport. A fixed v2 backport
> has been posted in this thread:
> 
> 	https://marc.info/?l=linux-kernel&m=142241055931689&w=2

But there is no thread. Could you repost?


-- 
js
suse labs
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