linux-kernel - Re: [PATCH 4.4 17/91] drm: rcar-du: Simplify and fix probe error handling

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Message-ID: <1502119078.2047.23.camel@codethink.co.uk>
Date:   Mon, 07 Aug 2017 16:17:58 +0100
From:   Ben Hutchings <ben.hutchings@...ethink.co.uk>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
        thongsyho <thong.ho.px@....renesas.com>,
        Nhan Nguyen <nhan.nguyen.yb@...esas.com>
Subject: Re: [PATCH 4.4 17/91] drm: rcar-du: Simplify and fix probe error
 handling

On Fri, 2017-08-04 at 16:15 -0700, Greg Kroah-Hartman wrote:
[...]
> @@ -291,6 +290,15 @@ static int rcar_du_probe(struct platform
>  	rcdu->dev = &pdev->dev;
>  	rcdu->info = of_match_device(rcar_du_of_table, rcdu->dev)->data;
>  
> +	platform_set_drvdata(pdev, rcdu);
> +
> +	/* I/O resources */
> +	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> +	rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
> +	if (IS_ERR(rcdu->mmio))
> +		ret = PTR_ERR(rcdu->mmio);
[...]

Last line above should be:

		return PTR_ERR(rcdu->mmio);

This is an error introduced in the backport, not the upstream commit.

Ben.

-- 
Ben Hutchings
Software Developer, Codethink Ltd.