diff options
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index bfb2f163c691..2bcd1f23d07d 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1912,8 +1912,13 @@ static struct iommu_domain *__iommu_domain_alloc(struct bus_type *bus, return NULL; domain->type = type; - /* Assume all sizes by default; the driver may override this later */ - domain->pgsize_bitmap = bus->iommu_ops->pgsize_bitmap; + /* + * If not already set, assume all sizes by default; the driver + * may override this later + */ + if (!domain->pgsize_bitmap) + domain->pgsize_bitmap = bus->iommu_ops->pgsize_bitmap; + if (!domain->ops) domain->ops = bus->iommu_ops->default_domain_ops; |