linux-kernel - Re: [PATCH] regulator: core: Use IS_ERR_OR

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Message-ID: <20150820155257.GB4159@linux>
Date:	Thu, 20 Aug 2015 21:22:57 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linaro-kernel@...ts.linaro.org, broonie@...nel.org,
	Liam Girdwood <lgirdwood@...il.com>,
	"open list:VOLTAGE AND CURRENT REGULATOR FRAMEWORK" 
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] regulator: core: Use IS_ERR_OR_NULL()

On 20-08-15, 15:26, Arnd Bergmann wrote:
> The use of IS_ERR_OR_NULL is almost always a bug (as is the open-coded
> equivalent).
> Please try to find out why this is done here and add a comment
> if it's actually correct, or fix it if not.
> 
> My guess is that it is not ok to pass an error pointer as the argument
> of _regulator_put(), so maybe there should be WARN_ON()?

I agree, but updating that would require a revisit of all the API
users, in case they are passing a possible error value to it.

I am fine at attempting to fix that, but would need an Ack from Mark
first.

-- 
viresh
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