Subject: Re: [PATCH 17/19] powerpc: hypervisor console driver for Celleb

From: Benjamin Herrenschmidt <[email-masked]>
Date: Thu, 18 Jan 2007 11:40:04 +1100

> +/* temp */
> +static int hvc_beat_init(void)
> +{
> +	struct hvc_struct *hp;
> +
> +	hp = hvc_alloc(0, NO_IRQ, &hvc_beat_get_put_ops, 16);
> +	if (IS_ERR(hp))
> +		return PTR_ERR(hp);
> +	hvc_beat_dev = hp;
> +	return 0;
> +}

Please test your are running on beat before initializing your stuff as
your driver might be built as part of a kernel that can boot other
machines. 

> +static void __exit hvc_beat_exit(void)
> +{
> +	if (hvc_beat_dev)
> +		hvc_remove(hvc_beat_dev);
> +}
> +
> +module_init(hvc_beat_init);
> +module_exit(hvc_beat_exit);
> +
> +__setup("hvc_beat=", hvc_beat_config);
> +
> +console_initcall(hvc_beat_console_init);
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