linux-kernel - Re: [PATCH v4 01/24] PM / devfreq: tegra30: Change irq type to unsigned int

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Date:   Tue, 16 Jul 2019 20:35:42 +0900
From:   Chanwoo Choi <cw00.choi@...sung.com>
To:     Dmitry Osipenko <digetx@...il.com>,
        Thierry Reding <thierry.reding@...il.com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Tomeu Vizoso <tomeu.vizoso@...labora.com>
Cc:     linux-pm@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 01/24] PM / devfreq: tegra30: Change irq type to
 unsigned int

Hi Dmitry,

On 19. 7. 8. 오전 7:32, Dmitry Osipenko wrote:
> IRQ numbers are always positive, hence the corresponding variable should
> be unsigned to keep types consistent. This is a minor change that cleans
> up code a tad more.
> 
> Suggested-by: Thierry Reding <thierry.reding@...il.com>
> Acked-by: MyungJoo Ham <myungjoo.ham@...sung.com>
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> ---
>  drivers/devfreq/tegra30-devfreq.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c
> index a6ba75f4106d..a27300f40b0b 100644
> --- a/drivers/devfreq/tegra30-devfreq.c
> +++ b/drivers/devfreq/tegra30-devfreq.c
> @@ -160,7 +160,7 @@ struct tegra_devfreq {
>  
>  	struct tegra_devfreq_device devices[ARRAY_SIZE(actmon_device_configs)];
>  
> -	int irq;
> +	unsigned int		irq;
>  };
>  
>  struct tegra_actmon_emc_ratio {
> @@ -618,12 +618,12 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
>  		return PTR_ERR(tegra->emc_clock);
>  	}
>  
> -	tegra->irq = platform_get_irq(pdev, 0);
> -	if (tegra->irq < 0) {
> -		err = tegra->irq;
> +	err = platform_get_irq(pdev, 0);
> +	if (err < 0) {
>  		dev_err(&pdev->dev, "Failed to get IRQ: %d\n", err);
>  		return err;
>  	}
> +	tegra->irq = err;
>  
>  	reset_control_assert(tegra->reset);
>  
> 

Reviewed-by: Chanwoo Choi <cw00.choi@...sung.com>

-- 
Best Regards,
Chanwoo Choi
Samsung Electronics