Date: Thu, 21 May 2015 18:28:16 -0400
From: Tejun Heo <tj@kernel.org>
To: Brian Norris <computersforpeace@gmail.com>
Cc: Fabio Estevam <festevam@gmail.com>, Kishon Vijay Abraham I <kishon@ti.com>,
        Mark Rutland <mark.rutland@arm.com>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        Hans de Goede <hdegoede@redhat.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Pawel Moll <pawel.moll@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kevin Cernekee <cernekee@gmail.com>,
        linux-kernel <linux-kernel@vger.kernel.org>, linux-ide@vger.kernel.org,
        Rob Herring <robh+dt@kernel.org>,
        bcm-kernel-feedback-list <bcm-kernel-feedback-list@broadcom.com>,
        Gregory Fong <gregory.0xf0@gmail.com>,
        Kumar Gala <galak@codeaurora.org>,
        "linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v3 3/5] ata: add Broadcom AHCI SATA3 driver for STB chips
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On Thu, May 21, 2015 at 03:26:10PM -0700, Brian Norris wrote:
> On Thu, May 21, 2015 at 3:20 PM, Tejun Heo <tj@kernel.org> wrote:
> > On Thu, May 21, 2015 at 07:16:07PM -0300, Fabio Estevam wrote:
> >> On Tue, May 12, 2015 at 8:28 PM, Brian Norris
> >> <computersforpeace@gmail.com> wrote:
> >>
> >> > +       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ahci");
> >> > +       ahci = devm_ioremap_resource(&pdev->dev, res);
> >> > +       if (IS_ERR(ahci))
> >> > +               return 0;
> >>
> >> You should propagate 'return PTR_ERR(ahci)' instead.
> >
> > Brian, can you please update the patch?
> 
> Note how the function brcm_ahci_get_portmask() is used. In brcm_ahci_probe():
> 
>         priv->port_mask = brcm_ahci_get_portmask(pdev, priv);
>         if (!priv->port_mask)
>                 return -ENODEV;
> 
> I could try to change the return semantics if really needed. Or I
> could add some comments on brcm_ahci_get_portmask() to note its return
> semantics. Or I could just leave the driver as-is. Your call.

Ah, you're right.  It's fine.  Leave it alone.

Thanks.

-- 
tejun
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