Date:   Wed, 8 Mar 2023 17:28:54 +0200
From:   Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To:     Pin-yen Lin <treapking@chromium.org>
Cc:     Andrzej Hajda <andrzej.hajda@intel.com>,
        Neil Armstrong <neil.armstrong@linaro.org>,
        Robert Foss <rfoss@kernel.org>,
        Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
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        Daniel Vetter <daniel@ffwll.ch>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Daniel Scally <djrscally@gmail.com>,
        Heikki Krogerus <heikki.krogerus@linux.intel.com>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J . Wysocki" <rafael@kernel.org>,
        Prashant Malani <pmalani@chromium.org>,
        Benson Leung <bleung@chromium.org>,
        Guenter Roeck <groeck@chromium.org>,
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        Javier Martinez Canillas <javierm@redhat.com>,
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        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
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        <ville.syrjala@linux.intel.com>
Subject: Re: [PATCH v13 03/10] drm/display: Add Type-C switch helpers
Message-ID: <ZAiptm03HzQila0M@smile.fi.intel.com>
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On Wed, Mar 08, 2023 at 06:20:14PM +0800, Pin-yen Lin wrote:
> On Mon, Mar 6, 2023 at 7:49 PM Andy Shevchenko
> > On Fri, Mar 03, 2023 at 10:33:43PM +0800, Pin-yen Lin wrote:

...

> > > +     switch_desc->typec_ports = devm_kcalloc(dev, switch_desc->num_typec_switches,
> > > +                                             sizeof(struct drm_dp_typec_port_data),
> > > +                                             GFP_KERNEL);
> > > +     if (!switch_desc->typec_ports)
> > > +             return -ENOMEM;
> >
> > How often this function _can_ be called during the runtime?
> > If it's _possible_ to call it infinite times, consider *not* using devm.
> 
> I would expect this function to be only called during driver probing,
> and this is the case for the current users in this series. So I think
> this is only called once if EPROBDE_DEFER doesn't count.

No, deferred probe is not counted.

Can you add a word somewhere in the comment(?) to make this clear?

-- 
With Best Regards,
Andy Shevchenko