linux-kernel - Re: [PATCH 2/3] gpio: sysfs: fix gpio device-attribute leak

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Message-ID: <CAAVeFu+-g7v670Bk5V3CKTYgjkKwgFVfKYy2ktyZ5LTGtsSvzw@mail.gmail.com>
Date:	Sun, 25 Jan 2015 18:27:34 +0900
From:	Alexandre Courbot <gnurou@...il.com>
To:	Johan Hovold <johan@...nel.org>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	stable <stable@...r.kernel.org>
Subject: Re: [PATCH 2/3] gpio: sysfs: fix gpio device-attribute leak

On Tue, Jan 13, 2015 at 9:00 PM, Johan Hovold <johan@...nel.org> wrote:
> 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.

Reviewed-by: Alexandre Courbot <acourbot@...dia.com>
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