linux-kernel - Re: [PATCH] twl4030_charger: use IRQF

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Message-ID: <20120823120035.GM30710@arwen.pp.htv.fi>
Date:	Thu, 23 Aug 2012 15:00:38 +0300
From:	Felipe Balbi <balbi@...com>
To:	Fengguang Wu <fengguang.wu@...el.com>
Cc:	Anton Vorontsov <anton.vorontsov@...aro.org>,
	David Woodhouse <dwmw2@...radead.org>,
	linux-kernel@...r.kernel.org,
	Kishon Vijay Abraham I <kishon@...com>,
	NeilBrown <neilb@...e.de>
Subject: Re: [PATCH] twl4030_charger: use IRQF_ONESHOT

On Thu, Aug 23, 2012 at 07:56:43PM +0800, Fengguang Wu wrote:
> Generated by: scripts/coccinelle/misc/irqf_oneshot.cocci
> 
> Make sure threaded IRQs without a primary handler are always request with IRQF_ONESHOT
> 
> Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>

makes sense, NULL hardirq handler:

Acked-by: Felipe Balbi <balbi@...com>

> ---
> 
> Please take the patch only if it's a positive warning. Thanks!
> 
>  drivers/power/twl4030_charger.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> --- linux.orig/drivers/power/twl4030_charger.c	2012-08-03 15:36:21.615560783 +0800
> +++ linux/drivers/power/twl4030_charger.c	2012-08-23 19:53:21.737195171 +0800
> @@ -534,7 +534,7 @@ static int __init twl4030_bci_probe(stru
>  	}
>  
>  	ret = request_threaded_irq(bci->irq_chg, NULL,
> -			twl4030_charger_interrupt, 0, pdev->name, bci);
> +			twl4030_charger_interrupt, IRQF_ONESHOT, pdev->name, bci);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "could not request irq %d, status %d\n",
>  			bci->irq_chg, ret);
> @@ -542,7 +542,7 @@ static int __init twl4030_bci_probe(stru
>  	}
>  
>  	ret = request_threaded_irq(bci->irq_bci, NULL,
> -			twl4030_bci_interrupt, 0, pdev->name, bci);
> +			twl4030_bci_interrupt, IRQF_ONESHOT, pdev->name, bci);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "could not request irq %d, status %d\n",
>  			bci->irq_bci, ret);
> --
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-- 
balbi

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