linux-kernel - Re: [PATCH v5] gpio: Add driver for basic memory-mapped GPIO controllers

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Message-ID: <755774.85376.qm@web180301.mail.gq1.yahoo.com>
Date:	Tue, 31 Aug 2010 13:32:08 -0700 (PDT)
From:	David Brownell <david-b@...bell.net>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Anton Vorontsov <cbouatmailru@...il.com>
Cc:	Samuel Ortiz <sameo@...ux.intel.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5] gpio: Add driver for basic memory-mapped GPIO controllers


> 
> +static int bgpio_dir_in(struct gpio_chip *gc, unsigned int
> gpio)
> +{
> +    return 0;


Here -EINVAL is more correct there than 0 ...


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