linux-kernel - Re: [v13, 5/8] soc: fsl: add GUTS driver for QorIQ platforms

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Date:   Thu, 27 Oct 2016 23:45:56 -0500
From:   Scott Wood <oss@...error.net>
To:     Yangbo Lu <yangbo.lu@....com>, linux-mmc@...r.kernel.org,
        ulf.hansson@...aro.org, Arnd Bergmann <arnd@...db.de>
Cc:     linuxppc-dev@...ts.ozlabs.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-i2c@...r.kernel.org,
        iommu@...ts.linux-foundation.org, netdev@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Russell King <linux@....linux.org.uk>,
        Jochen Friedrich <jochen@...am.de>,
        Joerg Roedel <joro@...tes.org>,
        Claudiu Manoil <claudiu.manoil@...escale.com>,
        Bhupesh Sharma <bhupesh.sharma@...escale.com>,
        Qiang Zhao <qiang.zhao@....com>,
        Kumar Gala <galak@...eaurora.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Leo Li <leoyang.li@....com>, Xiaobo Xie <xiaobo.xie@....com>,
        Minghuan Lian <minghuan.lian@....com>
Subject: Re: [v13, 5/8] soc: fsl: add GUTS driver for QorIQ platforms

On Fri, 2016-10-28 at 11:32 +0800, Yangbo Lu wrote:
> +	guts->regs = of_iomap(np, 0);
> +	if (!guts->regs)
> +		return -ENOMEM;
> +
> +	/* Register soc device */
> +	machine = of_flat_dt_get_machine_name();
> +	if (machine)
> +		soc_dev_attr.machine = devm_kstrdup(dev, machine,
> GFP_KERNEL);
> +
> +	svr = fsl_guts_get_svr();
> +	soc_die = fsl_soc_die_match(svr, fsl_soc_die);
> +	if (soc_die) {
> +		soc_dev_attr.family = devm_kasprintf(dev, GFP_KERNEL,
> +						     "QorIQ %s", soc_die-
> >die);
> +	} else {
> +		soc_dev_attr.family = devm_kasprintf(dev, GFP_KERNEL,
> "QorIQ");
> +	}
> +	soc_dev_attr.soc_id = devm_kasprintf(dev, GFP_KERNEL,
> +					     "svr:0x%08x", svr);
> +	soc_dev_attr.revision = devm_kasprintf(dev, GFP_KERNEL, "%d.%d",
> +					       SVR_MAJ(svr), SVR_MIN(svr));
> +
> +	soc_dev = soc_device_register(&soc_dev_attr);
> +	if (IS_ERR(soc_dev))
> +		return PTR_ERR(soc_dev);

ioremap leaks on this error path.  Use devm_ioremap_resource().

-Scott