linux-kernel - Re: [PATCH 07/24] thunderbolt: Convert switch to a device

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Message-ID: <CAHp75VdXTi7AaKus96OteU=gWBbaTDSN-uLe4zeGJC97ZNXskw@mail.gmail.com>
Date:   Thu, 18 May 2017 19:49:21 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andreas Noever <andreas.noever@...il.com>,
        Michael Jamet <michael.jamet@...el.com>,
        Yehezkel Bernat <yehezkel.bernat@...el.com>,
        Lukas Wunner <lukas@...ner.de>,
        Amir Levy <amir.jer.levy@...el.com>,
        Andy Lutomirski <luto@...nel.org>,
        Mario Limonciello <Mario.Limonciello@...l.com>,
        Jared.Dominguez@...l.com,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 07/24] thunderbolt: Convert switch to a device

On Thu, May 18, 2017 at 5:38 PM, Mika Westerberg
<mika.westerberg@...ux.intel.com> wrote:
> Thunderbolt domain consists of switches that are connected to each
> other, forming a bus. This will convert each switch into a real Linux
> device structure and adds them to the domain. The advantage here is
> that we get all the goodies from the driver core, like reference
> counting and sysfs hierarchy for free.
>
> Also expose device identification information to the userspace via new
> sysfs attributes.
>
> In order to support internal connection manager (ICM) we separate switch
> configuration into its own function (tb_switch_configure()) which is
> only called by the existing native connection manager implementation
> used on Macs.
>

Couple of nits below.

> +
> +       return sw;
> +err:

Perhaps
err_free_sw_ports:
?

> +       kfree(sw->ports);
> +       kfree(sw);
> +       return NULL;
> +}

> +       /* upload configuration */
> +       ret = tb_sw_write(sw, 1 + (u32 *) &sw->config, TB_CFG_SWITCH, 1, 3);

Extra space before &.

> +       if (ret)
> +               return ret;

-- 
With Best Regards,
Andy Shevchenko