linux-kernel - Re: [PATCH] video: fbdev: pxafb: Use correct return value for pxafb

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Date:   Mon, 1 Jun 2020 15:25:25 +0200
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     Tiezhu Yang <yangtiezhu@...ngson.cn>
Cc:     dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Xuefeng Li <lixuefeng@...ngson.cn>
Subject: Re: [PATCH] video: fbdev: pxafb: Use correct return value for
 pxafb_probe()


On 5/25/20 9:11 AM, Tiezhu Yang wrote:
> When call function devm_platform_ioremap_resource(), we should use IS_ERR()
> to check the return value and return PTR_ERR() if failed.
> 
> Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>

Applied to drm-misc-next tree (patch should show up in v5.9), thanks.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

> ---
>  drivers/video/fbdev/pxafb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c
> index 00b96a7..423331c 100644
> --- a/drivers/video/fbdev/pxafb.c
> +++ b/drivers/video/fbdev/pxafb.c
> @@ -2305,7 +2305,7 @@ static int pxafb_probe(struct platform_device *dev)
>  	fbi->mmio_base = devm_platform_ioremap_resource(dev, 0);
>  	if (IS_ERR(fbi->mmio_base)) {
>  		dev_err(&dev->dev, "failed to get I/O memory\n");
> -		ret = -EBUSY;
> +		ret = PTR_ERR(fbi->mmio_base);
>  		goto failed;
>  	}
>  
>