Date:   Mon, 23 Jan 2023 20:18:01 +0200
From:   Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To:     Hans de Goede <hdegoede@redhat.com>
Cc:     "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
        linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
        acpica-devel@lists.linuxfoundation.org,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Len Brown <lenb@kernel.org>,
        Robert Moore <robert.moore@intel.com>
Subject: Re: [PATCH v1 1/3] ACPI: video: Fix refcounting in
 apple_gmux_backlight_present()
Message-ID: <Y87PWaFFpHeW5YLv@smile.fi.intel.com>
References: <20230123171006.58274-1-andriy.shevchenko@linux.intel.com>
 <9e24156c-65fc-d38b-317a-9cc8fb2201b9@redhat.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <9e24156c-65fc-d38b-317a-9cc8fb2201b9@redhat.com>
Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo
Precedence: bulk

On Mon, Jan 23, 2023 at 06:46:44PM +0100, Hans de Goede wrote:
> On 1/23/23 18:10, Andy Shevchenko wrote:
> > acpi_dev_get_first_match_dev() gets ACPI device with the bumped
> > refcount. The caller must drop it when it's done.
> > 
> > Fix ACPI device refcounting in apple_gmux_backlight_present().

...

> Thank you for your work on this, much appreciated and I like
> the new acpi_get_first_match_physical_node().
> 
> But I don't think this patch is a good idea. There is a
> regression related to apple_gmux_backlight_present()
> with a patch-set fixing it pending.
> 
> And that patch-set actually removes this function. Adding
> a fix for this real, but not really important leak now,
> will just make backporting the actual fix harder.
> 
> So I would prefer for this patch to not go in and to
> go for (a to be submitted v2) of the patch-set fixing
> the regression right away instead.

Maybe I missed something, but I noticed that you actually moved (not killed)
the code which is currently in this function. If it's the case, I prefer my
fix to be imported first.

-- 
With Best Regards,
Andy Shevchenko