linux-kernel - Re: [PATCH RFC] sh: maple: Add support for SEGA Dreamcast VMU and clean up maple bus driver (3/3)

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Message-ID: <20090129025754.GC31096@linux-sh.org>
Date:	Thu, 29 Jan 2009 11:57:54 +0900
From:	Paul Mundt <lethal@...ux-sh.org>
To:	Adrian McMenamin <adrian@...golddream.dyndns.info>
Cc:	Greg KH <greg@...ah.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	dwmw2 <dwmw2@...radead.org>, linux-sh <linux-sh@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-input <linux-input@...r.kernel.org>,
	MTD <linux-mtd@...ts.infradead.org>
Subject: Re: [PATCH RFC] sh: maple: Add support for SEGA Dreamcast VMU and clean up maple bus driver (3/3)

On Thu, Jan 29, 2009 at 12:18:07AM +0000, Adrian McMenamin wrote:
> +	if (!(mdev->function & MAPLE_FUNC_KEYBOARD)) {
> +		error = EINVAL;
> +		goto fail;
> +	}
>  
What is this all about? If the function doesn't match, you should never
enter the probe routine in the first place. The bus code should already
get this right.
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