linux-kernel - Re: [PATCH 2/2] ASoC: tegra: probe deferral error reporting

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sat, 21 Jul 2018 10:56:15 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Marcel Ziswiler <marcel.ziswiler@...adex.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "jonathanh@...dia.com" <jonathanh@...dia.com>,
        "thierry.reding@...il.com" <thierry.reding@...il.com>,
        "tiwai@...e.com" <tiwai@...e.com>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "perex@...ex.cz" <perex@...ex.cz>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>
Subject: Re: [PATCH 2/2] ASoC: tegra: probe deferral error reporting

On Fri, Jul 20, 2018 at 12:31:07PM +0000, Marcel Ziswiler wrote:
> On Fri, 2018-07-20 at 13:16 +0100, Mark Brown wrote:

> > >  	ac97->sync_gpio = of_get_named_gpio(pdev->dev.of_node,
> > >  					    "nvidia,codec-sync-
> > > gpio", 0);
> > >  	if (!gpio_is_valid(ac97->sync_gpio)) {
> > > -		dev_err(&pdev->dev, "no codec-sync GPIO
> > > supplied\n");
> > > +		ret = ac97->sync_gpio;
> > > +		dev_err(&pdev->dev, "no codec-sync GPIO supplied:
> > > %d\n", ret);
> > >  		goto err_clk_put;
> > >  	}

> > This isn't reporting an error code associated with the attempt to
> > find a
> > codec-sync GPIO, it's the result of some other operation.

> What exactly is then the of_get_named_gpio() above please doing if
> not getting the codec sync GPIO? I am not following you, sorry.

It's not in any way involved in setting the value of ret, whatever value
that has it's nothing to do with that operation.

Download attachment "signature.asc" of type "application/pgp-signature" (489 bytes)