diff options
Diffstat (limited to 'drivers/iommu/iommufd/hw_pagetable.c')
| -rw-r--r-- | drivers/iommu/iommufd/hw_pagetable.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/drivers/iommu/iommufd/hw_pagetable.c b/drivers/iommu/iommufd/hw_pagetable.c index 43d473989a06..10db1359c067 100644 --- a/drivers/iommu/iommufd/hw_pagetable.c +++ b/drivers/iommu/iommufd/hw_pagetable.c @@ -13,7 +13,17 @@ void iommufd_hw_pagetable_destroy(struct iommufd_object *obj) WARN_ON(!list_empty(&hwpt->devices)); - iommu_domain_free(hwpt->domain); + if (!list_empty(&hwpt->hwpt_item)) { + mutex_lock(&hwpt->ioas->mutex); + list_del(&hwpt->hwpt_item); + mutex_unlock(&hwpt->ioas->mutex); + + iopt_table_remove_domain(&hwpt->ioas->iopt, hwpt->domain); + } + + if (hwpt->domain) + iommu_domain_free(hwpt->domain); + refcount_dec(&hwpt->ioas->obj.users); mutex_destroy(&hwpt->devices_lock); } @@ -37,21 +47,22 @@ iommufd_hw_pagetable_alloc(struct iommufd_ctx *ictx, struct iommufd_ioas *ioas, if (IS_ERR(hwpt)) return hwpt; - hwpt->domain = iommu_domain_alloc(dev->bus); - if (!hwpt->domain) { - rc = -ENOMEM; - goto out_abort; - } - INIT_LIST_HEAD(&hwpt->devices); INIT_LIST_HEAD(&hwpt->hwpt_item); mutex_init(&hwpt->devices_lock); /* Pairs with iommufd_hw_pagetable_destroy() */ refcount_inc(&ioas->obj.users); hwpt->ioas = ioas; + + hwpt->domain = iommu_domain_alloc(dev->bus); + if (!hwpt->domain) { + rc = -ENOMEM; + goto out_abort; + } + return hwpt; out_abort: - iommufd_object_abort(ictx, &hwpt->obj); + iommufd_object_abort_and_destroy(ictx, &hwpt->obj); return ERR_PTR(rc); } |