diff options
| -rw-r--r-- | drivers/iommu/s390-iommu.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c index f148f559ac56..58ca7727b7f2 100644 --- a/drivers/iommu/s390-iommu.c +++ b/drivers/iommu/s390-iommu.c @@ -974,6 +974,8 @@ static unsigned long *get_rto_from_iova(struct s390_domain *domain, case ZPCI_TABLE_TYPE_RFX: case ZPCI_TABLE_TYPE_RSX: rso = get_rso_from_iova(domain, iova); + if (!rso) + return NULL; rsx = calc_rsx(iova); rse = READ_ONCE(rso[rsx]); if (!reg_entry_isvalid(rse)) |