linux-kernel - Re: [PATCH v2 08/14] iommu/mediatek-v1: fix device leak on probe

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Message-ID: <6522536a1fe9e6368837fba3a41c68dca1a83b34.camel@mediatek.com>
Date: Sat, 18 Oct 2025 06:51:02 +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>,
	"honghui.zhang@...iatek.com" <honghui.zhang@...iatek.com>,
	"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 08/14] iommu/mediatek-v1: fix device leak on
 probe_device()

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 probe_device().
> 
> Fixes: b17336c55d89 ("iommu/mediatek: add support for mtk iommu
> generation one HW")
> Cc: stable@...r.kernel.org      # 4.8
> Cc: Honghui Zhang <honghui.zhang@...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>