From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2C8E04A4839; Fri, 11 Sep 2026 16:27:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789144049; cv=none; b=WojwxPXRGysCuyr3Q+KLpv1zIevRoUqvDeybkCPOJFjHTn7enl2TAUelvB6fEQPBiXpbdQFyIZH2q5K0ZemVDJba1BgrBvsDyRyHTUanbR3bWS9c5UsbOmg88R0uKz/8S1nIi3jReyDbhLgAzfYmE/HQXxIMccBFJ/QIg8RsUsM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789144049; c=relaxed/simple; bh=b+IWU51OnllHs5XfURcNBNiy5eIlJ0+bTwXhcH9qCs0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=MZkafvL9d22EwFJT+xqPMc7EuZ5eT422282/X8mXEopTDuAytSaBXxa/2AOs6dwAav7OZLtasi+96cb938NTTdRnaxs/kruv3qf4FV21NVQv5B1R3zgmZPxkfzUFRFxfrgRaJS4C6UrJAEbGq0rlPnAzUxoY1ih0kB81gKXhLjU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=d3sgZyHe; arc=none smtp.client-ip=192.198.163.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="d3sgZyHe" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1789144046; x=1820680046; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=b+IWU51OnllHs5XfURcNBNiy5eIlJ0+bTwXhcH9qCs0=; b=d3sgZyHeTg2BhNOGnmscydaxZ67aBGTPxGHTOKly2S/UByAoJn8i0tzq aLAcS7qLtTBZJmv4xy9PNzl015xXANGokGsjHzSNIDnLkHsYJidxS/wna wVkfnkSUXwazN1AQ8Vh7e1C3i2hqdgfRxMQcMpyHJRNov615UqlCDALG/ n+5GrUoIYKMbew30P++HalmBo/P1SjI388YlbeSHA6M6ZwCxPWj/nMlLn jgJDB7jbxBvpFQKJBGi5JTkufj9t3vk38WXsgPmwOUmxMQVA2YiWUegls 4Hc62VmVDit/mHVZrL0a3SxBHao4emx4tQSBpONGafPBQkx3yZBdQBWYN g==; X-CSE-ConnectionGUID: rSf0qbmWQ1Ops2ZCTuDJ8Q== X-CSE-MsgGUID: UQKqShVMTNyTwIKeW/eOhw== X-IronPort-AV: E=McAfee;i="6800,10657,11902"; a="89482545" X-IronPort-AV: E=Sophos;i="6.27,97,1787036400"; d="scan'208";a="89482545" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Sep 2026 09:27:25 -0700 X-CSE-ConnectionGUID: HrctSv75SzKE8KclnyCgXw== X-CSE-MsgGUID: 5JePjAnBSv2GkR1x1eSgTQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,97,1787036400"; d="scan'208";a="270587050" Received: from pgcooper-mobl3.ger.corp.intel.com (HELO localhost) ([10.245.244.80]) by orviesa010-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Sep 2026 09:27:24 -0700 Date: Fri, 11 Sep 2026 19:27:21 +0300 From: Andy Shevchenko To: "Rafael J. Wysocki" Cc: Linux ACPI , Daniel Lezcano , Hans de Goede , LKML , Linux PM , Lukasz Luba , Armin Wolf Subject: Re: [PATCH v1 02/10] ACPI: video: Fix backlight unregistration ordering Message-ID: References: <1965933.tdWV9SEqCh@rafael.j.wysocki> <3429468.aeNJFYEL58@rafael.j.wysocki> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3429468.aeNJFYEL58@rafael.j.wysocki> Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo On Fri, Sep 11, 2026 at 03:01:30PM +0200, Rafael J. Wysocki wrote: > In acpi_video_dev_unregister_backlight(), the sysfs interface of the > cooling class device may access the brightness object under the > backlight device's ACPI companion, so that object cannot be freed > before unregistering the cooling class device. > > Adjust the code to take that into account. > > Fixes: Fixes? > Signed-off-by: Rafael J. Wysocki -- With Best Regards, Andy Shevchenko