linux-kernel - Re: [PATCH 5/5] sound/aoa: Add kmalloc NULL tests

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Date:	Thu, 30 Jul 2009 16:17:00 +0200
From:	Johannes Berg <johannes@...solutions.net>
To:	Julia Lawall <julia@...u.dk>
Cc:	linuxppc-dev@...abs.org, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 5/5] sound/aoa: Add kmalloc NULL tests

On Thu, 2009-07-30 at 16:11 +0200, Julia Lawall wrote:
> From: Julia Lawall <julia@...u.dk>
> 
> Check that the result of kzalloc is not NULL before a dereference.

>  		irq_client = kzalloc(sizeof(struct pmf_irq_client),
>  				     GFP_KERNEL);
> +		if (!irq_client) {
> +			err = -ENOMEM;
> +			printk(KERN_ERR "snd-aoa: gpio layer failed to"
> +				" register %s irq (%d)\n", name, err);
> +			goto out_unlock;
> +		}

Looks good, thanks, but I'd really drop the printk if only to not have
the string there, that doesn't really seem interesting.

johannes

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