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 35F0D2F6933; Mon, 20 Oct 2025 10:35:58 +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=1760956560; cv=none; b=fHqm5x2Xo0rQoS1A2acrdBd1zAUS4yVgo6W+tLmAiTKeFUM+UPITdAzkSjAQzRI4LYpNys6N387GDHsCWbzbCV7DLWyGO2wYvSpviSjjVa8nB2plxuis6QwVJa1Z53SIDnZrCNDmJeD9exuCH63RaR3T/o4qbsePebpOmr5fvds= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760956560; c=relaxed/simple; bh=V4y+htwEdDmlnLK1Fy+0wRN95xzwTz+++IQ2l0uvEM0=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=YS3vcwZ6olrTs6Eh8pvMjmuw3jMywUOiUQ+bL/r9uP68gwwO12U/FqLZLr+4xnOVoN22S777sx7hktD84P5wCYb+gx9m1DWq5MCCipUJpvTKeyuC5Z49d5UrugoBe/FlLx3UaFdx460XQ6oit45utyRqY6LP+xuxnLsVQswZ2F4= 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=VN6MfDXl; 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="VN6MfDXl" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1760956556; bh=V4y+htwEdDmlnLK1Fy+0wRN95xzwTz+++IQ2l0uvEM0=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=VN6MfDXleMzUgYPAqde+/NStyEs/FvxzccEouEiYA07mr8NfQC96cQhOoR0eiq3Xu ZqdmP/thH4nT3adCmRBgKJOFLOn1bEe0W/uYR9PO6cz4HGSICLF4fICP2u+MPlHbYL AxMyD0ziBu0p0Kf1rhywGhZr3TKpe16ePuCNl26ig6KAVR83GSACyozArd0NpwRvI4 /AjOtQLhbiUAOX2W8+o9CAbYFLKWOoDnLSGiSfeaboe4OVm/Vkcpc5yfKUR9ZDzAVO /4iURn10rwFcdrURFFRpGRcvSxy04Tufjr9GvoLyo9/MApfG4lqY2R30lWTZ/hHhWx aNHS76UKI7VCQ== 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 A622017E13F9; Mon, 20 Oct 2025 12:35:55 +0200 (CEST) Message-ID: <9177efff-3ded-4ea8-844c-c1a2178c58d4@collabora.com> Date: Mon, 20 Oct 2025 12:35:55 +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 08/14] iommu/mediatek-v1: fix device leak on probe_device() 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, Honghui Zhang References: <20251020045318.30690-1-johan@kernel.org> <20251020045318.30690-9-johan@kernel.org> From: AngeloGioacchino Del Regno Content-Language: en-US In-Reply-To: <20251020045318.30690-9-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 probe_device(). > > Fixes: b17336c55d89 ("iommu/mediatek: add support for mtk iommu generation one HW") > Cc: stable@vger.kernel.org # 4.8 > Cc: Honghui Zhang > Acked-by: Robin Murphy > Reviewed-by: Yong Wu > Signed-off-by: Johan Hovold Reviewed-by: AngeloGioacchino Del Regno