linux-kernel - Re: [PATCH v7 1/2] mfd: Add anatop mfd driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20120304055500.GC10743@S2101-09.ap.freescale.net>
Date:	Sun, 4 Mar 2012 13:55:04 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	"Ying-Chun Liu (PaulLiu)" <paul.liu@...aro.org>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linaro-dev@...ts.linaro.org, patches@...aro.org,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Venu Byravarasu <vbyravarasu@...dia.com>,
	Peter Korsgaard <jacmet@...site.dk>
Subject: Re: [PATCH v7 1/2] mfd: Add anatop mfd driver

Sorry, one more missing ...

On Sun, Mar 04, 2012 at 01:39:12AM +0800, Ying-Chun Liu (PaulLiu) wrote:
...
> +static int of_anatop_probe(struct platform_device *pdev)
> +{
> +	struct device *dev = &pdev->dev;
> +	struct device_node *np = dev->of_node;
> +	void *ioreg;
> +	struct anatop *drvdata;
> +
> +	ioreg = of_iomap(np, 0);
> +	if (!ioreg)
> +		return -EINVAL;
> +	drvdata = devm_kzalloc(dev, sizeof(struct anatop), GFP_KERNEL);

sizeof(*drvdata) please.

Documentation/CodingStyle, Chapter 14:

The preferred form for passing a size of a struct is the following:

        p = kmalloc(sizeof(*p), ...);

The alternative form where struct name is spelled out hurts readability and
introduces an opportunity for a bug when the pointer variable type is changed
but the corresponding sizeof that is passed to a memory allocator is not.

> +	if (!drvdata)
> +		return -EINVAL;
> +	drvdata->ioreg = ioreg;
> +	spin_lock_init(&drvdata->reglock);
> +	platform_set_drvdata(pdev, drvdata);
> +	of_platform_bus_probe(np, of_anatop_subdevice_match, dev);
> +
> +	return 0;
> +}

-- 
Regards,
Shawn
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/