linux-kernel - Re: [PATCH] pinctrl: at91: move lock/unlock_as_irq calls into request/release resources methods

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Message-ID: <CACRpkdbS1sYR9D8iBjnKUt3Urv5VXn3axR5OddPQOVhxvh7GAQ@mail.gmail.com>
Date:	Wed, 18 Mar 2015 02:06:03 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Nicolas Ferre <nicolas.ferre@...el.com>
Cc:	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jean-Jacques Hiblot <jjhiblot@...phandler.com>
Subject: Re: [PATCH] pinctrl: at91: move lock/unlock_as_irq calls into
 request/release resources methods

On Tue, Mar 10, 2015 at 9:34 AM, Nicolas Ferre <nicolas.ferre@...el.com> wrote:
> Le 09/03/2015 17:14, Linus Walleij a écrit :
>> On Sun, Feb 8, 2015 at 7:23 PM, Boris Brezillon
>> <boris.brezillon@...e-electrons.com> wrote:
>>
>>> The gpiochip_lock_as_irq call can fail and return an error, while the
>>> irq_startup is not expected to fail (returns an unsigned int which is not
>>> checked by irq core code).
>>>
>>> irq_request/release_resources functions have been created to address this
>>> problem.
>>>
>>> Move gpiochip_lock/unlock_as_irq calls into
>>> irq_request/release_resources functions to prevent using a gpio as an irq
>>> if the gpiochip_lock_as_irq call failed.
>>>
>>> Signed-off-by: Boris Brezillon <boris.brezillon@...e-electrons.com>
>>
>> Patch applied with all the ACKs.
>
> Hi Linus,
>
> As suggested earlier, do you think it can be scheduled for the 4.0-rc
> phase as a "fix"?

OK argh had to rebase my tree to get the patch out of the devel
branch but what can I do.

Yours,
Linus Walleij
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