From: Laxman Dewangan <ldewangan@nvidia.com>
To: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: "grant.likely@secretlab.ca" <grant.likely@secretlab.ca>,
"linus.walleij@stericsson.com" <linus.walleij@stericsson.com>,
"sameo@linux.intel.com" <sameo@linux.intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Stephen Warren <swarren@nvidia.com>
Subject: Re: [PATCH V2 1/6] mfd: tps6586x:use devm managed resources
Date: Wed, 18 Jul 2012 11:03:27 +0530 [thread overview]
Message-ID: <50064AA7.3020508@nvidia.com> (raw)
In-Reply-To: <20120717165346.GH4477@opensource.wolfsonmicro.com>
On Tuesday 17 July 2012 10:23 PM, Mark Brown wrote:
> * PGP Signed by an unknown key
>
> On Tue, Jul 17, 2012 at 10:12:39AM +0530, Laxman Dewangan wrote:
>> On Tuesday 17 July 2012 01:31 AM, Mark Brown wrote:
>>> On Mon, Jul 16, 2012 at 12:21:45PM +0530, Laxman Dewangan wrote:
>
>> I think device_remove will get called before the managed resource
>> get freed.
>> So do we need to call disable_irq() in remove() to avoid any interrupts?
> That would be very rude if the IRQ happened to get shared, though that's
> not possible at the moment. In general it's pretty hard to use devm_
> IRQs safely, it's normally safest to avoid them due to the issues with
> ensuring that the interrupt handler is safe to be called even while the
> device is being torn down.
OK, then I will revert this specific change if it is not safe. I will
send the another patch (part of series v3 1/6) for this change only.
next prev parent reply other threads:[~2012-07-18 5:42 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-16 6:51 [PATCH V2 0/6] mfd: tp6586x: enhancements in the driver Laxman Dewangan
2012-07-16 6:51 ` [PATCH V2 1/6] mfd: tps6586x:use devm managed resources Laxman Dewangan
2012-07-16 20:01 ` Mark Brown
2012-07-17 4:42 ` Laxman Dewangan
2012-07-17 16:53 ` Mark Brown
2012-07-18 5:33 ` Laxman Dewangan [this message]
2012-07-16 6:51 ` [PATCH V2 2/6] mfd: Use regmap for tps6586x register access Laxman Dewangan
2012-07-16 20:02 ` Mark Brown
2012-07-16 6:51 ` [PATCH V2 3/6] mfd: tps6586x: cache register through regmap Laxman Dewangan
2012-07-16 20:03 ` Mark Brown
2012-07-17 4:28 ` Laxman Dewangan
2012-07-16 6:51 ` [PATCH V2 4/6] gpio: tps6586x: add gpio support through platform driver Laxman Dewangan
2012-07-16 6:51 ` [PATCH V2 5/6] ARM: tegra: defconfig: enable tps6586x gpio Laxman Dewangan
2012-07-16 22:35 ` Linus Walleij
2012-07-16 6:51 ` [PATCH V2 6/6] mfd: tps6586x: remove gpio support from core driver Laxman Dewangan
2012-07-16 22:35 ` Linus Walleij
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