[PATCH v2] iommu/arm-smmu: Defer probe of clients after smmu device bound

Will Deacon will at kernel.org
Tue Oct 29 09:15:13 PDT 2024


On Fri, 04 Oct 2024 14:34:28 +0530, Pratyush Brahma wrote:
> Null pointer dereference occurs due to a race between smmu
> driver probe and client driver probe, when of_dma_configure()
> for client is called after the iommu_device_register() for smmu driver
> probe has executed but before the driver_bound() for smmu driver
> has been called.
> 
> Following is how the race occurs:
> 
> [...]

Applied to will (for-joerg/arm-smmu/updates), thanks!

[1/1] iommu/arm-smmu: Defer probe of clients after smmu device bound
      https://git.kernel.org/will/c/229e6ee43d2a

Cheers,
-- 
Will

https://fixes.arm64.dev
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