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

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Message-ID: <54FEAC8F.1040206@atmel.com>
Date:	Tue, 10 Mar 2015 09:34:23 +0100
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Linus Walleij <linus.walleij@...aro.org>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>
CC:	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

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"?

Bye,



> Happy new year J-C!
> 
> Yours,
> Linus Walleij
> 
> 


-- 
Nicolas Ferre
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