linux-kernel - Re: [tip:irq/urgent] avr32/at32ap: Fix race in installing chained IRQ handler

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Message-ID: <20150628181529.GB8046@samfundet.no>
Date:	Sun, 28 Jun 2015 20:15:29 +0200
From:	Hans-Christian Egtvedt <egtvedt@...fundet.no>
To:	rmk+kernel@....linux.org.uk, hskinnemoen@...il.com, hpa@...or.com,
	mingo@...nel.org, tglx@...utronix.de, Julia.Lawall@...6.fr,
	linux-kernel@...r.kernel.org
Cc:	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:irq/urgent] avr32/at32ap: Fix race in installing chained
 IRQ handler

Around Fri 26 Jun 2015 12:47:18 -0700 or thereabout, tip-bot for Thomas Gleixner wrote:
> avr32/at32ap: Fix race in installing chained IRQ handler
> 

<snipp>


> Reported-by: Russell King <rmk+kernel@....linux.org.uk>
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> Cc: Julia Lawall <Julia.Lawall@...6.fr>
> Cc: Haavard Skinnemoen <hskinnemoen@...il.com>
> Cc: Hans-Christian Egtvedt <egtvedt@...fundet.no>
> ---
>  arch/avr32/mach-at32ap/extint.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c
> index cfb298d..2d48b6a 100644
> --- a/arch/avr32/mach-at32ap/extint.c
> +++ b/arch/avr32/mach-at32ap/extint.c
> @@ -231,8 +231,7 @@ static int __init eic_probe(struct platform_device *pdev)
>  		irq_set_chip_data(eic->first_irq + i, eic);
>  	}
>  
> -	irq_set_chained_handler(int_irq, demux_eic_irq);
> -	irq_set_handler_data(int_irq, eic);
> +	irq_set_chained_handler_and_data(int_irq, demux_eic_irq, eic);
>  
>  	if (pdev->id == 0) {
>  		nmi_eic = eic;

Good fix, wil you pass it through your git tree, or would you prefer I add it
to the AVR32 tree? I have nothing in the pipe, hence feel free to add it to a
series if you are preparing fixes.

Acked-by: Hans-Christian Egtvedt <egtvedt@...fundet.no>

-- 
mvh
Hans-Christian Egtvedt
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