diff options
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 35db51780954..50718ab810a4 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1213,7 +1213,11 @@ static int iommu_create_device_direct_mappings(struct iommu_domain *domain, if (addr == end) goto map_end; - phys_addr = iommu_iova_to_phys(domain, addr); + /* + * Return address by iommu_iova_to_phys for 0 is + * ambiguous. Offset to address 1 if addr is 0. + */ + phys_addr = iommu_iova_to_phys(domain, addr ? addr : 1); if (!phys_addr) { map_size += pg_size; continue; |