diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index aaf9cf59dca9..678f648f491d 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1992,7 +1992,11 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain, * during alloc_io_pgtable_ops */ arm_smmu_secure_domain_lock(smmu_domain); - arm_smmu_assign_table(smmu_domain); + ret = arm_smmu_assign_table(smmu_domain); + if (ret == -EPROBE_DEFER) { + arm_smmu_secure_domain_unlock(smmu_domain); + goto out_clear_smmu; + } arm_smmu_secure_domain_unlock(smmu_domain); /* Update the domain's page sizes to reflect the page table format */ @@ -2480,6 +2484,10 @@ static int arm_smmu_assign_table(struct arm_smmu_domain *smmu_domain) ret = hyp_assign_phys(virt_to_phys(pte_info->virt_addr), PAGE_SIZE, &source_vmid, 1, dest_vmids, dest_perms, 2); + + if (ret == -EPROBE_DEFER) + return ret; + if (WARN_ON(ret)) break; } @@ -2507,6 +2515,10 @@ static void arm_smmu_unassign_table(struct arm_smmu_domain *smmu_domain) ret = hyp_assign_phys(virt_to_phys(pte_info->virt_addr), PAGE_SIZE, source_vmlist, 2, &dest_vmids, &dest_perms, 1); + + if (ret == -EPROBE_DEFER) + return; + if (WARN_ON(ret)) break; free_pages_exact(pte_info->virt_addr, pte_info->size);