linux-kernel - RE: [PATCH 1/3] ARM: tegra: pcie: Add tegra3 support

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]

Message-ID: <C79B248886DD134989C8FF6B096A91AB91B36FB2FD@BGMAIL01.nvidia.com>
Date:	Fri, 12 Apr 2013 20:28:30 +0530
From:	Jay Agarwal <jagarwal@...dia.com>
To:	'Stephen Warren' <swarren@...dotorg.org>
CC:	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"thierry.reding@...onic-design.de" <thierry.reding@...onic-design.de>,
	Laxman Dewangan <ldewangan@...dia.com>,
	"bhelgaas@...gle.com" <bhelgaas@...gle.com>,
	"olof@...om.net" <olof@...om.net>, Hiroshi Doyu <hdoyu@...dia.com>,
	Prashant Gaikwad <pgaikwad@...dia.com>,
	"mturquette@...aro.org" <mturquette@...aro.org>,
	Peter De Schrijver <pdeschrijver@...dia.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	Juha Tukkinen <jtukkinen@...dia.com>,
	Krishna Thota <kthota@...dia.com>
Subject: RE: [PATCH 1/3] ARM: tegra: pcie: Add tegra3 support

> >  	err = regulator_disable(pcie->pex_clk_supply);
> >  	if (err < 0)
> > -		dev_err(pcie->dev, "failed to disable pex-clk regulator:
> %d\n",
> > +		dev_warn(pcie->dev, "failed to disable pex-clk regulator:
> %d\n",
> >  			err);
> >
> >  	err = regulator_disable(pcie->vdd_supply);
> >  	if (err < 0)
> > -		dev_err(pcie->dev, "failed to disable VDD regulator: %d\n",
> > +		dev_warn(pcie->dev, "failed to disable VDD regulator:
> %d\n",
> >  			err);
> 
> Please explain why that change is correct. If the regulators only exist on
> Tegra20, please represent that fact in the SoC data. Regulators must always
> exist, so enable/disable should never fail due to missing regulators. Actual
> run-time failures seem like something that really is an error.
> 
[>] These regulators are needed for both tegra20 & tegra30. Since we are not returning error here, so changed to dev_warn.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/