linux-kernel - Re: [PATCH] gpio: adnp: Fix segfault if request_threaded

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Message-ID: <CACRpkdZX5tNmY0KcUrghv8TzVVP_vmgfxje+LMKpEbFfyQMTUA@mail.gmail.com>
Date:	Fri, 16 Aug 2013 16:53:53 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Lars Poeschel <larsi@....tu-dresden.de>
Cc:	Lars Poeschel <poeschel@...onage.de>,
	Grant Likely <grant.likely@...aro.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Thierry Reding <thierry.reding@...il.com>
Subject: Re: [PATCH] gpio: adnp: Fix segfault if request_threaded_irq fails

On Wed, Aug 7, 2013 at 5:23 PM, Lars Poeschel <larsi@....tu-dresden.de> wrote:

> From: Lars Poeschel <poeschel@...onage.de>
>
> In case request_threaded_irq inside adnp_irq_setup fails, the driver
> segfaults. This is because irq_domain_remove is called twice with
> the same pointer. First time in adnp_irq_setup and then a second time
> after leaving adnp_irq_setup in the error path of adnp_i2c_probe
> inside adnp_teardown.
> This fixes this by removing the call to irq_domain_remove from
> adnp_irq_setup.
>
> Signed-off-by: Lars Poeschel <poeschel@...onage.de>

Patch applied.

Yours,
Linus Walleij
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