linux-kernel - Re: ERR_PTR and PTR

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Message-ID: <Pine.LNX.4.64.1005161104520.6573@ask.diku.dk>
Date:	Sun, 16 May 2010 11:05:23 +0200 (CEST)
From:	Julia Lawall <julia@...u.dk>
To:	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: ERR_PTR and PTR_ERR

On Sun, 16 May 2010, Julia Lawall wrote:

> I see a number of occurrences of code like the following:
> 
>  	if (IS_ERR(alg))
> 		return ERR_PTR(PTR_ERR(alg));
> 
> Is there any reason why the second line couldn't just be return alg?

Hmm, never mind.  It seems to address a type problem.

julia
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