From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (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 00F582FB0B1; Mon, 20 Oct 2025 10:36:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760956562; cv=none; b=U264PP9rRwftgq3N1izOGdcKiRWstUKp+D8rM6oyd9uI/K4YQs7ECvHczmw8ukUBhvs5FJprd09EOXccdrZJAkiJrRw0UeVWPvHamKq2nINrXKau5FDVrOvFRaA+p+b66iTbRzaVbh7RdYrJANw9+av4yhue/zi5J5f0QLZRQsc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760956562; c=relaxed/simple; bh=GlPRnhvTkY2sAG96sRPyf5FBZxMsGVmonJWGyXdZSIY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=aIRPCsPFA//0GbovMlOQzD8VRUYeQZodlgPIvfIi3U55eYvILSnoXKylrnkWyXHC9S+w3mtwlIGnCSDrnfAKnHsa7qhW6I5BOUrK7NK0qP5bgwsaRt1noaUb6l9rZjuqqrT1XmP3Wa7BmPto27mh2WE/rwahGDRgXTzXsOd2yuk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=FW4/sZPF; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="FW4/sZPF" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1760956559; bh=GlPRnhvTkY2sAG96sRPyf5FBZxMsGVmonJWGyXdZSIY=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=FW4/sZPFX43xuFdEiJI19pfIOQZMgoWWmmzWhTmD565solxcwhJRc5+t0YNEZXrIK PKPlqh1cuUwlAdmnvQsrT8GoHMh+ihMOm454CBwSX/1mFuQiY+KlxH2w5OeuHu3nqA p8FFZiODXjTPnnIzgVQm/q0v+fy3Ao6XfxIhTvI/mcorrcWx/dul0eZX66aQvg8Rmw 3Kh1Lei+jjAn8I0gGya9lv2rRSNHyKGwRCQou1p/6ZMsXcWSiSumtWlSNBN0qygDL4 apiK4hSZbnp4qnmpKhLTt6s7mBZ+tUXLi1EiVU9Vj9Fn2MDKB8MeP1po6vBR0cwM57 SuQDwrNwGapwQ== Received: from [192.168.1.100] (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by bali.collaboradmins.com (Postfix) with ESMTPSA id 9764B17E108C; Mon, 20 Oct 2025 12:35:58 +0200 (CEST) Message-ID: <20a763e9-3574-4284-ab3a-f25f18d50c6b@collabora.com> Date: Mon, 20 Oct 2025 12:35:58 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 05/14] iommu/mediatek: fix device leak on of_xlate() To: Johan Hovold , Joerg Roedel , Will Deacon Cc: Robin Murphy , Sven Peter , Janne Grunau , Rob Clark , Marek Szyprowski , Yong Wu , Matthias Brugger , Chen-Yu Tsai , Thierry Reding , Krishna Reddy , iommu@lists.linux.dev, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20251020045318.30690-1-johan@kernel.org> <20251020045318.30690-6-johan@kernel.org> From: AngeloGioacchino Del Regno Content-Language: en-US In-Reply-To: <20251020045318.30690-6-johan@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Il 20/10/25 06:53, Johan Hovold ha scritto: > Make sure to drop the reference taken to the iommu platform device when > looking up its driver data during of_xlate(). > > Fixes: 0df4fabe208d ("iommu/mediatek: Add mt8173 IOMMU driver") > Cc: stable@vger.kernel.org # 4.6 > Acked-by: Robin Murphy > Reviewed-by: Yong Wu > Signed-off-by: Johan Hovold Reviewed-by: AngeloGioacchino Del Regno