linux-kernel - Re: [PATCH] gpiolib: allow exported GPIO nodes to be named using sysfs links

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Date:	Tue, 30 Jun 2009 18:43:22 -0700
From:	David Brownell <david-b@...bell.net>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Jani Nikula <ext-jani.1.nikula@...ia.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] gpiolib: allow exported GPIO nodes to be named using sysfs links

On Monday 22 June 2009, Andrew Morton wrote:
> On Thu, 11 Jun 2009 12:19:03 +0300
> Jani Nikula <ext-jani.1.nikula@...ia.com> wrote:
> 
> > +int gpio_export_link(struct device *dev, const char *name, unsigned gpio)
> > +{
> > +	struct gpio_desc	*desc;
> > +	int			status = -EINVAL;
> > +
> > +	BUG_ON(dev == NULL);
> > +	BUG_ON(name == NULL);
> 
> We usually don't bother with these assertions.  If the kernel will
> reliably oops if one of these is NULL, then that provides the same
> information anyway.

Yeah, it'd be better to remove those BUG_ON() things before this goes upstream...

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