linux-kernel - Re: [PATCH] clk: keystone: Fix an error checking

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Message-ID: <20161024103614.GW4469@mwanda>
Date:   Mon, 24 Oct 2016 13:36:14 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     ssantosh@...nel.org, mturquette@...libre.com, sboyd@...eaurora.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] clk: keystone: Fix an error checking

On Sun, Oct 23, 2016 at 10:12:49AM +0200, Christophe JAILLET wrote:
> clk_register_pll() can return ERR_PTR(-ENOMEM) so here the check against
> NULL only is not correct.
> 

Change the ERR_PTR(-ENOMEM) to a NULL instead.  When we mix error
pointers and NULL, what it means is that NULL should be treated as a
success case.  That's not the case here, so we should just return NULL
since we don't actually care about the error codes.

regards,
dan carpenter