From: Johan Hovold <johan@kernel.org>
To: Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>
Cc: Robin Murphy <robin.murphy@arm.com>, Sven Peter <sven@kernel.org>,
Janne Grunau <j@jannau.net>,
Rob Clark <robin.clark@oss.qualcomm.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Yong Wu <yong.wu@mediatek.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Chen-Yu Tsai <wens@csie.org>,
Thierry Reding <thierry.reding@gmail.com>,
Krishna Reddy <vdumpa@nvidia.com>,
iommu@lists.linux.dev, linux-kernel@vger.kernel.org,
Johan Hovold <johan@kernel.org>,
stable@vger.kernel.org, Maxime Ripard <mripard@kernel.org>
Subject: [PATCH 13/14] iommu/sun50i: fix device leak on of_xlate()
Date: Thu, 25 Sep 2025 14:27:55 +0200 [thread overview]
Message-ID: <20250925122756.10910-14-johan@kernel.org> (raw)
In-Reply-To: <20250925122756.10910-1-johan@kernel.org>
Make sure to drop the reference taken to the iommu platform device when
looking up its driver data during of_xlate().
Fixes: 4100b8c229b3 ("iommu: Add Allwinner H6 IOMMU driver")
Cc: stable@vger.kernel.org # 5.8
Cc: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/iommu/sun50i-iommu.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iommu/sun50i-iommu.c b/drivers/iommu/sun50i-iommu.c
index de10b569d9a9..6306570d57db 100644
--- a/drivers/iommu/sun50i-iommu.c
+++ b/drivers/iommu/sun50i-iommu.c
@@ -839,6 +839,8 @@ static int sun50i_iommu_of_xlate(struct device *dev,
dev_iommu_priv_set(dev, platform_get_drvdata(iommu_pdev));
+ put_device(&iommu_pdev->dev);
+
return iommu_fwspec_add_ids(dev, &id, 1);
}
--
2.49.1
next prev parent reply other threads:[~2025-09-25 12:29 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-25 12:27 [PATCH 00/14] iommu: fix device leaks Johan Hovold
2025-09-25 12:27 ` [PATCH 01/14] iommu/apple-dart: fix device leak on of_xlate() Johan Hovold
2025-09-25 12:27 ` [PATCH 02/14] iommu/qcom: " Johan Hovold
2025-09-25 12:27 ` [PATCH 03/14] iommu/exynos: " Johan Hovold
2025-09-25 12:27 ` [PATCH 04/14] iommu/ipmmu-vmsa: " Johan Hovold
2025-09-25 12:27 ` [PATCH 05/14] iommu/mediatek: " Johan Hovold
2025-09-25 12:27 ` [PATCH 06/14] iommu/mediatek: fix device leaks on probe() Johan Hovold
2025-09-25 12:27 ` [PATCH 07/14] iommu/mediatek: simplify dt parsing error handling Johan Hovold
2025-09-25 12:27 ` [PATCH 08/14] iommu/mediatek-v1: fix device leak on probe_device() Johan Hovold
2025-09-25 12:27 ` [PATCH 09/14] iommu/mediatek-v1: fix device leaks on probe() Johan Hovold
2025-09-25 12:27 ` [PATCH 10/14] iommu/mediatek-v1: add missing larb count sanity check Johan Hovold
2025-09-25 12:27 ` [PATCH 11/14] iommu/omap: fix device leaks on probe_device() Johan Hovold
2025-10-02 12:05 ` Robin Murphy
2025-10-02 14:45 ` Johan Hovold
2025-09-25 12:27 ` [PATCH 12/14] iommu/omap: simplify probe_device() error handling Johan Hovold
2025-09-25 12:27 ` Johan Hovold [this message]
2025-09-25 12:27 ` [PATCH 14/14] iommu/tegra: fix device leak on probe_device() Johan Hovold
2025-09-30 18:21 ` [PATCH 00/14] iommu: fix device leaks Jason Gunthorpe
2025-09-30 19:35 ` Robin Murphy
2025-10-01 15:58 ` Jason Gunthorpe
2025-10-02 11:48 ` Robin Murphy
2025-10-02 13:01 ` Jason Gunthorpe
2025-10-01 9:16 ` Johan Hovold
2025-10-01 16:01 ` Jason Gunthorpe
2025-10-07 9:41 ` Johan Hovold
2025-10-02 12:17 ` Robin Murphy
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