linux-kernel - Re: [PATCH v2] pinctrl: protect pinctrl

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Message-ID: <CACRpkdanesMMZJ046wws5GoOLK9hgh29rHXQ0-uPKC9rTxjzsw@mail.gmail.com>
Date:	Tue, 4 Feb 2014 22:08:19 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Stanislaw Gruszka <sgruszka@...hat.com>
Cc:	Stephen Warren <swarren@...dotorg.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Stephen Warren <swarren@...dia.com>,
	Patrice Chotard <patrice.chotard@...com>
Subject: Re: [PATCH v2] pinctrl: protect pinctrl_list add

On Tue, Feb 4, 2014 at 9:07 AM, Stanislaw Gruszka <sgruszka@...hat.com> wrote:

> We have few fedora bug reports about list corruption on pinctrl,
> for example:
> https://bugzilla.redhat.com/show_bug.cgi?id=1051918
>
> Most likely corruption happen due lack of protection of pinctrl_list
> when adding new nodes to it. Patch corrects that.
>
> Fixes: 42fed7ba44e ("pinctrl: move subsystem mutex to pinctrl_dev struct")
> Cc: stable@...r.kernel.org
> Signed-off-by: Stanislaw Gruszka <sgruszka@...hat.com>
> ---
> I only compile tested patch, also did not get test results from bug
> reporters yet. But I'm pretty confident that patch fixes the problem
> and does not cause any other deadlock.
>
> v1 -> v2: point correct first bad commit.

Patch applied. Thanks for bringing this to our attention!

Yours,
Linus Walleij
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