diff options
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 4920605892a3..656b9499e748 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1063,6 +1063,9 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova, domain->ops->pgsize_bitmap == 0UL)) return -ENODEV; + if (unlikely(!(domain->type & __IOMMU_DOMAIN_PAGING))) + return -EINVAL; + /* find out the minimum page size supported */ min_pagesz = 1 << __ffs(domain->ops->pgsize_bitmap); @@ -1114,6 +1117,9 @@ size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size) domain->ops->pgsize_bitmap == 0UL)) return -ENODEV; + if (unlikely(!(domain->type & __IOMMU_DOMAIN_PAGING))) + return -EINVAL; + /* find out the minimum page size supported */ min_pagesz = 1 << __ffs(domain->ops->pgsize_bitmap); |