linux-kernel - Re: [PATCH] mfd: cros_ec: Only register a positive IRQ number

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Message-ID: <20190322211550.GA139120@google.com>
Date:   Fri, 22 Mar 2019 14:15:50 -0700
From:   Benson Leung <bleung@...gle.com>
To:     egranata@...omium.org
Cc:     lee.jones@...aro.org, bleung@...omium.org,
        enric.balletbo@...labora.com, groeck@...omium.org,
        linux-kernel@...r.kernel.org, gwendal@...gle.com, amstan@...gle.com
Subject: Re: [PATCH] mfd: cros_ec: Only register a positive IRQ number

Hi Enrico,

On Thu, Mar 21, 2019 at 02:03:47PM -0700, egranata@...omium.org wrote:
> From: Enrico Granata <egranata@...omium.org>
> 
> Add a layer of sanity checking to cros_ec_register against attempting to
> register IRQ values that are not strictly greater than 0.
> 
> Signed-off-by: Enrico Granata <egranata@...omium.org>

Acked-By: Benson Leung <bleung@...omium.org>

> ---
>  drivers/mfd/cros_ec.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c
> index 6acfe036d5222..ff8984a2b8c21 100644
> --- a/drivers/mfd/cros_ec.c
> +++ b/drivers/mfd/cros_ec.c
> @@ -118,7 +118,7 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
>  		return err;
>  	}
>  
> -	if (ec_dev->irq) {
> +	if (ec_dev->irq > 0) {
>  		err = devm_request_threaded_irq(dev, ec_dev->irq, NULL,
>  				ec_irq_thread, IRQF_TRIGGER_LOW | IRQF_ONESHOT,
>  				"chromeos-ec", ec_dev);
> -- 
> 2.21.0.225.g810b269d1ac-goog
> 

-- 
Benson Leung
Staff Software Engineer
Chrome OS Kernel
Google Inc.
bleung@...gle.com
Chromium OS Project
bleung@...omium.org

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