linux-kernel - Re: [patch 2/6] [RFC] Add MMC Password Protection (lock/unlock) support V5

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Message-ID: <4544750F.4000301@drzeus.cx>
Date:	Sun, 29 Oct 2006 10:31:59 +0100
From:	Pierre Ossman <drzeus-list@...eus.cx>
To:	Carlos Aguiar <carlos.aguiar@...t.org.br>
CC:	linux-kernel@...r.kernel.org,
	linux-omap-open-source@...ux.omap.com,
	David Brownell <david-b@...bell.net>,
	Tony Lindgren <tony@...mide.com>,
	Russell King <rmk+lkml@....linux.org.uk>,
	ilias.biris@...t.org.br
Subject: Re: [patch 2/6] [RFC] Add MMC Password Protection (lock/unlock) support
 V5

Carlos Aguiar wrote:
> +int mmc_key_instantiate(struct key *key, const void *data, size_t datalen)
>   

static

> +int mmc_key_match(const struct key *key, const void *description)
>   

static

> +void mmc_key_destroy(struct key *key)
>   

static

> @@ -335,6 +403,15 @@ static int __init mmc_init(void)
>  		ret = class_register(&mmc_host_class);
>  		if (ret)
>  			bus_unregister(&mmc_bus_type);
> +#ifdef	CONFIG_MMC_PASSWORDS
> +		else {
> +			ret = register_key_type(&mmc_key_type);
> +			if (ret) {
> +				class_unregister(&mmc_host_class);
> +				bus_unregister(&mmc_bus_type);
> +			}
> +		}
> +#endif
>  	}
>  	return ret;
>  }
>   

We're starting to get a bit of code duplication here. Perhaps an error
handling section at the end of the function would be better.

Rgds

-- 
     -- Pierre Ossman

  Linux kernel, MMC maintainer        http://www.kernel.org
  PulseAudio, core developer          http://pulseaudio.org
  rdesktop, core developer          http://www.rdesktop.org

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