30.09.2020 03:30, Nicolin Chen пишет:
>  void tegra_smmu_remove(struct tegra_smmu *smmu)
>  {
> +     bus_set_iommu(&platform_bus_type, NULL);

Why only platform_bus? Is this really needed at all?

>       iommu_device_unregister(&smmu->iommu);
>       iommu_device_sysfs_remove(&smmu->iommu);

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