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Message-ID: <20251007094327.11734-1-johan@kernel.org>
Date: Tue, 7 Oct 2025 11:43:13 +0200
From: Johan Hovold <johan@...nel.org>
To: Joerg Roedel <joro@...tes.org>,
Will Deacon <will@...nel.org>
Cc: Robin Murphy <robin.murphy@....com>,
Sven Peter <sven@...nel.org>,
Janne Grunau <j@...nau.net>,
Rob Clark <robin.clark@....qualcomm.com>,
Marek Szyprowski <m.szyprowski@...sung.com>,
Yong Wu <yong.wu@...iatek.com>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
Chen-Yu Tsai <wens@...e.org>,
Thierry Reding <thierry.reding@...il.com>,
Krishna Reddy <vdumpa@...dia.com>,
iommu@...ts.linux.dev,
linux-kernel@...r.kernel.org,
Johan Hovold <johan@...nel.org>
Subject: [PATCH v2 00/14] iommu: fix device leaks
This series fixes device leaks in the iommu drivers, which pretty
consistently failed to drop the reference taken by
of_find_device_by_node() when looking up iommu platform devices.
Included are also a couple of related cleanups.
Johan
Changes in v2
- drop omap reference sooner; remove unused pointer
- amend exynos commit message with reference to partial fix
- amend tegra commit message with reference to partial fix
- add Robin's ack
Johan Hovold (14):
iommu/apple-dart: fix device leak on of_xlate()
iommu/qcom: fix device leak on of_xlate()
iommu/exynos: fix device leak on of_xlate()
iommu/ipmmu-vmsa: fix device leak on of_xlate()
iommu/mediatek: fix device leak on of_xlate()
iommu/mediatek: fix device leaks on probe()
iommu/mediatek: simplify dt parsing error handling
iommu/mediatek-v1: fix device leak on probe_device()
iommu/mediatek-v1: fix device leaks on probe()
iommu/mediatek-v1: add missing larb count sanity check
iommu/omap: fix device leaks on probe_device()
iommu/omap: simplify probe_device() error handling
iommu/sun50i: fix device leak on of_xlate()
iommu/tegra: fix device leak on probe_device()
drivers/iommu/apple-dart.c | 2 ++
drivers/iommu/arm/arm-smmu/qcom_iommu.c | 10 +++-----
drivers/iommu/exynos-iommu.c | 9 +++----
drivers/iommu/ipmmu-vmsa.c | 2 ++
drivers/iommu/mtk_iommu.c | 33 +++++++++++++++++--------
drivers/iommu/mtk_iommu_v1.c | 28 +++++++++++++++++----
drivers/iommu/omap-iommu.c | 7 ++----
drivers/iommu/omap-iommu.h | 2 --
drivers/iommu/sun50i-iommu.c | 2 ++
drivers/iommu/tegra-smmu.c | 5 ++--
10 files changed, 63 insertions(+), 37 deletions(-)
--
2.49.1
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