linux-kernel - Re: [PATCH] drivers/base: error handling fixes

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Message-ID: <20061004172434.1a2ddb71@gondolin.boeblingen.de.ibm.com>
Date:	Wed, 4 Oct 2006 17:24:34 +0200
From:	Cornelia Huck <cornelia.huck@...ibm.com>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Greg KH <greg@...ah.com>, Andrew Morton <akpm@...l.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drivers/base: error handling fixes

On Wed, 4 Oct 2006 09:05:54 -0400,
Jeff Garzik <jeff@...zik.org> wrote:

>  static int __cpuinit topology_cpu_callback(struct notifier_block *nfb,
> @@ -112,17 +110,18 @@ static int __cpuinit topology_cpu_callba
>  {
>  	unsigned int cpu = (unsigned long)hcpu;
>  	struct sys_device *sys_dev;
> +	int rc = 0;
>  
>  	sys_dev = get_cpu_sysdev(cpu);
>  	switch (action) {
>  	case CPU_ONLINE:
> -		topology_add_dev(sys_dev);
> +		rc = topology_add_dev(sys_dev);
>  		break;
>  	case CPU_DEAD:
>  		topology_remove_dev(sys_dev);
>  		break;
>  	}
> -	return NOTIFY_OK;
> +	return rc ? NOTIFY_BAD : NOTIFY_OK;
>  }

Wouldn't that also require that _cpu_up checked the return code when
doing CPU_ONLINE notification (and clean up on error)?
-
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