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Message-ID: <1502420907.2598.9.camel@intel.com>
Date:   Fri, 11 Aug 2017 11:08:27 +0800
From:   Zhang Rui <rui.zhang@...el.com>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Eduardo Valentin <edubezval@...il.com>,
        Heiko Stuebner <heiko@...ech.de>
Cc:     linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] thermal: rockchip: fix error return code in
 rockchip_thermal_probe()

On Mon, 2017-08-07 at 23:35 -0500, Gustavo A. R. Silva wrote:
> platform_get_irq() returns an error code, but the rockchip_thermal
> driver
> ignores it and always returns -EINVAL. This is not correct and,
> prevents
> -EPROBE_DEFER from being propagated properly.
> 
> Notice that platform_get_irq() no longer returns 0 on error:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/co
> mmit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af
> 
> Print and propagate the return value of platform_get_irq on failure.
> 
> This issue was detected with the help of Coccinelle.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>

Applied.

thanks,
rui
> ---
>  drivers/thermal/rockchip_thermal.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/thermal/rockchip_thermal.c
> b/drivers/thermal/rockchip_thermal.c
> index 4c77965..6ca9747 100644
> --- a/drivers/thermal/rockchip_thermal.c
> +++ b/drivers/thermal/rockchip_thermal.c
> @@ -1068,8 +1068,8 @@ static int rockchip_thermal_probe(struct
> platform_device *pdev)
>  
>  	irq = platform_get_irq(pdev, 0);
>  	if (irq < 0) {
> -		dev_err(&pdev->dev, "no irq resource?\n");
> -		return -EINVAL;
> +		dev_err(&pdev->dev, "no irq resource: %d\n", irq);
> +		return irq;
>  	}
>  
>  	thermal = devm_kzalloc(&pdev->dev, sizeof(struct
> rockchip_thermal_data),

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