On Mon, Oct 20, 2025 at 06:53:04AM +0200, Johan Hovold wrote:
> 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 v3
> - fix mediatek use-after-free on probe deferral
> - add acks and reviewed-bys from Marek, Yong and Thierry
>
> 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 use-after-free on probe deferral
> 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 | 34 +++++++++++++++++--------
> 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(+), 38 deletions(-)
Applied, thanks.