linux-kernel - Re: [RFC PATCH] drivers: regulator: add error checks for exported APIs

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Message-ID: <20120726112237.GV3099@opensource.wolfsonmicro.com>
Date:	Thu, 26 Jul 2012 12:22:37 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	"ABRAHAM, KISHON VIJAY" <kishon@...com>
Cc:	lrg@...com, balbi@...com, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH] drivers: regulator: add error checks for exported
 APIs

On Thu, Jul 26, 2012 at 04:49:21PM +0530, ABRAHAM, KISHON VIJAY wrote:
> On Thu, Jul 26, 2012 at 4:40 PM, Mark Brown

> > Also NULL is a valid regulator (though we don't use it right now).

> I see a lot of dereferencing *regulator*. How is it supposed to work
> when *regulator* is NULL?

Like I say we don't use this now but the spec in the API is that
anything except an error pointer is valid.

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