[PATCH v4] iommu/riscv: prevent NULL deref in iova_to_phys

[patchwork-bot+linux-riscv at kernel.org]

Hello:

This patch was applied to riscv/linux.git (for-next)
by Joerg Roedel <joerg.roedel at amd.com>:

On Wed, 20 Aug 2025 15:22:48 +0800 you wrote:
> The riscv_iommu_pte_fetch() function returns either NULL for
> unmapped/never-mapped iova, or a valid leaf pte pointer that requires no
> further validation.
> 
> riscv_iommu_iova_to_phys() failed to handle NULL returns. Prevent null pointer
> dereference in riscv_iommu_iova_to_phys(), and remove the pte validation.
> 
> [...]

Here is the summary with links:
  - [v4] iommu/riscv: prevent NULL deref in iova_to_phys
    https://git.kernel.org/riscv/c/99d4d1a07087

You are awesome, thank you!
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