RE: [PATCH v5 2/9] iommu: Replace sva_iommu with iommu_attach_handle

Tian, Kevin
2024-05-15T07:21:34Z

> From: Lu Baolu <baolu.lu@linux.intel.com>
> Sent: Tuesday, April 30, 2024 10:57 PM
>
> #else
> -static inline struct iommu_sva *
> +static inline struct iommu_attach_handle *
> iommu_sva_bind_device(struct device *dev, struct mm_struct *mm)
> {
> - return NULL;
> + return ERR_PTR(-ENODEV);
> }
>

this should be a separate fix.

existing drivers (idxd and uacce) only check IS_ERR() on the return
value. A Null pointer may lead to an error reported at a later point.