linux-kernel - Re: [PATCH -next] drm/omap: Use PTR_ERR_OR_ZERO in hdmi4_core

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Message-ID: <3dec4093-824e-b13d-d712-2dedd445a7b7@ti.com>
Date:   Mon, 1 Apr 2019 13:21:38 +0300
From:   Tomi Valkeinen <tomi.valkeinen@...com>
To:     YueHaibing <yuehaibing@...wei.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Sean Paul <seanpaul@...omium.org>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Matteo Croce <mcroce@...hat.com>,
        Benoit Parrot <bparrot@...com>
CC:     <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH -next] drm/omap: Use PTR_ERR_OR_ZERO in hdmi4_core_init()

Hi,

On 29/03/2019 03:41, YueHaibing wrote:
> Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
> 
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---
>  drivers/gpu/drm/omapdrm/dss/hdmi4_core.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c b/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c
> index e384b95ad857..8287ade5ece0 100644
> --- a/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c
> +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c
> @@ -934,8 +934,5 @@ int hdmi4_core_init(struct platform_device *pdev, struct hdmi_core_data *core)
>  
>  	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
>  	core->base = devm_ioremap_resource(&pdev->dev, res);
> -	if (IS_ERR(core->base))
> -		return PTR_ERR(core->base);
> -
> -	return 0;
> +	return PTR_ERR_OR_ZERO(core->base);
>  }

Thanks, but I don't usually want this kind of patches. They're mostly
just extra changes, increasing the chance of conflicts, and, in my
opinion, the current code is clearer than the proposed one.

 Tomi

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