linux-kernel - Re: [PATCH 1/2] gpio: Fix crash in gpiod_set

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Message-ID: <CACRpkdZyQQ0io9dPsmAs1xyoFgo0u262SZd3B=oUgh8gdWiGFQ@mail.gmail.com>
Date:	Tue, 3 Sep 2013 14:10:51 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Thierry Reding <thierry.reding@...il.com>
Cc:	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Frank Rowand <frowand.list@...il.com>
Subject: Re: [PATCH 1/2] gpio: Fix crash in gpiod_set_debounce()

On Tue, Sep 3, 2013 at 12:39 PM, Thierry Reding
<thierry.reding@...il.com> wrote:

> Return an error if neither the ->set() nor the ->set_debounce() function
> is implemented by the chip. Furthermore move locking further down so the
> lock doesn't have to be unlocked on error. This is safe to do because at
> this point the lock doesn't protect anything.
>
> Signed-off-by: Thierry Reding <treding@...dia.com>
> ---
> Linus,
>
> Feel free to squash this into the commit that introduced these:
>
>         fc9bbfb: gpio: improve error path in gpiolib

Hm I fixed part of this bug yesterday, but screwed up and left the dangling
spinlock in there, what is wrong with me :-(

Anyway, fixed it _finally_ now, thanks to you.

Yours,
Linus Walleij
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