linux-kernel - Re: [PATCH v2 06/18] platform: chrome: cros_ec: Do not attempt to register a non-positive IRQ number

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Message-ID: <83d75a50-71a0-9dd9-e56b-5e7ec3ec5d96@collabora.com>
Date:   Tue, 22 Oct 2019 12:05:38 +0200
From:   Enric Balletbo i Serra <enric.balletbo@...labora.com>
To:     Gwendal Grignou <gwendal@...omium.org>, briannorris@...omium.org,
        jic23@...nel.org, knaack.h@....de, lars@...afoo.de,
        pmeerw@...erw.net, lee.jones@...aro.org, bleung@...omium.org,
        dianders@...omium.org, groeck@...omium.org,
        fabien.lahoudere@...labora.com
Cc:     linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
        Enrico Granata <egranata@...omium.org>
Subject: Re: [PATCH v2 06/18] platform: chrome: cros_ec: Do not attempt to
 register a non-positive IRQ number



On 21/10/19 7:53, Gwendal Grignou 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>
> Signed-off-by: Gwendal Grignou <gwendal@...omium.org>

Enrico, Gwendal, this can be applied alone without waiting for the others, right?

For my own reference:

Acked-for-chrome-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>


> ---
> Changes in v2:
>   Remove dual Enrico's signature.
> 
>  drivers/platform/chrome/cros_ec.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/platform/chrome/cros_ec.c b/drivers/platform/chrome/cros_ec.c
> index 739f3cffe26e3..9b19f50572313 100644
> --- a/drivers/platform/chrome/cros_ec.c
> +++ b/drivers/platform/chrome/cros_ec.c
> @@ -149,7 +149,7 @@ 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, ec_irq_handler,
>  				ec_irq_thread, IRQF_TRIGGER_LOW | IRQF_ONESHOT,
>