linux-kernel - Re: [PATCH 11/21] mfd: use devm_irq_of_parse_and

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Date:	Tue, 17 Jun 2014 16:12:26 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	nyushchenko@....rtsoft.ru
Cc:	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	lugovskoy@....rtsoft.ru
Subject: Re: [PATCH 11/21] mfd: use devm_irq_of_parse_and_map() where
 appropriate

> From: Nikita Yushchenko <nyushchenko@....rtsoft.ru>
> 
> This avoids leak of IRQ mapping on error paths, and makes it possible
> to use devm_request_irq() without facing unmap-while-handler-installed
> issues.
> 
> Signed-off-by: Nikita Yushchenko <nyushchenko@....rtsoft.ru>
> ---
>  drivers/mfd/max8997.c |    4 +++-
>  drivers/mfd/max8998.c |    4 +++-
>  2 files changed, 6 insertions(+), 2 deletions(-)

Applied, thanks.

> diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c
> index 8cf7a01..6ae0786 100644
> --- a/drivers/mfd/max8997.c
> +++ b/drivers/mfd/max8997.c
> @@ -153,7 +153,9 @@ static struct max8997_platform_data *max8997_i2c_parse_dt_pdata(
>  		return ERR_PTR(-ENOMEM);
>  	}
>  
> -	pd->ono = irq_of_parse_and_map(dev->of_node, 1);
> +	pd->ono = devm_irq_of_parse_and_map(dev, dev->of_node, 1);
> +	if (pd->ono < 0)
> +		return ERR_PTR(pd->ono);
>  
>  	/*
>  	 * ToDo: the 'wakeup' member in the platform data is more of a linux
> diff --git a/drivers/mfd/max8998.c b/drivers/mfd/max8998.c
> index 592db06..6b62dd7 100644
> --- a/drivers/mfd/max8998.c
> +++ b/drivers/mfd/max8998.c
> @@ -159,7 +159,9 @@ static struct max8998_platform_data *max8998_i2c_parse_dt_pdata(
>  	if (!pd)
>  		return ERR_PTR(-ENOMEM);
>  
> -	pd->ono = irq_of_parse_and_map(dev->of_node, 1);
> +	pd->ono = devm_irq_of_parse_and_map(dev, dev->of_node, 1);
> +	if (pd->ono < 0)
> +		return ERR_PTR(pd->ono);
>  
>  	/*
>  	 * ToDo: the 'wakeup' member in the platform data is more of a linux

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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