Re: [Patch 2/2] cciss: add reboot notifier support to driver

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On Wed, 21 Feb 2007 15:12:51 -0600 "Mike Miller (OS Dev)" <[email protected]> wrote:

> @@ -3293,6 +3327,12 @@ #endif
>  	       ((hba[i]->nr_cmds + BITS_PER_LONG -
>  		 1) / BITS_PER_LONG) * sizeof(unsigned long));
>  
> +	if (notify_count == 0) {
> +		register_reboot_notifier(&cciss_notifier);
> +		notify_count=1;
> +	}
> +
> +
>  #ifdef CCISS_DEBUG
>  	printk(KERN_DEBUG "Scanning for drives on controller cciss%d\n", i);
>  #endif				/* CCISS_DEBUG */
> @@ -3500,6 +3540,7 @@ static void __exit cciss_cleanup(void)
>  	int i;
>  
>  	pci_unregister_driver(&cciss_pci_driver);
> +	unregister_reboot_notifier(&cciss_notifier);

Should we check that it was registered before going and unregistering
it?  ie: do `modprobe cciss' on a machine which has no cciss hardware,
then do rmmod...
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