linux-kernel - Re: [PATCH v2 05/14] iommu/mediatek: fix device leak on of

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Message-ID: <c8827d23c3f2b580cef9ad137673351073e2ed68.camel@mediatek.com>
Date: Sat, 18 Oct 2025 06:50:50 +0000
From: Yong Wu (吴勇) <Yong.Wu@...iatek.com>
To: "joro@...tes.org" <joro@...tes.org>, "will@...nel.org" <will@...nel.org>,
	"johan@...nel.org" <johan@...nel.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"j@...nau.net" <j@...nau.net>, "vdumpa@...dia.com" <vdumpa@...dia.com>,
	"robin.murphy@....com" <robin.murphy@....com>, "m.szyprowski@...sung.com"
	<m.szyprowski@...sung.com>, "wens@...e.org" <wens@...e.org>,
	"thierry.reding@...il.com" <thierry.reding@...il.com>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>, "iommu@...ts.linux.dev"
	<iommu@...ts.linux.dev>, "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
	"robin.clark@....qualcomm.com" <robin.clark@....qualcomm.com>,
	"sven@...nel.org" <sven@...nel.org>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>
Subject: Re: [PATCH v2 05/14] iommu/mediatek: fix device leak on of_xlate()

On Tue, 2025-10-07 at 11:43 +0200, Johan Hovold wrote:
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
> 
> 
> 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@...r.kernel.org      # 4.6
> Cc: Yong Wu <yong.wu@...iatek.com>
> Acked-by: Robin Murphy <robin.murphy@....com>
> Signed-off-by: Johan Hovold <johan@...nel.org>

Reviewed-by: Yong Wu <yong.wu@...iatek.com>