diff options
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 3de5c0bcb5cc..2c48a9d6d91e 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -205,18 +205,21 @@ static int iommu_insert_resv_region(struct iommu_resv_region *new, pos = pos->next; } else if ((start >= a) && (end <= b)) { if (new->type == type) - goto done; + return 0; else pos = pos->next; } else { if (new->type == type) { phys_addr_t new_start = min(a, start); phys_addr_t new_end = max(b, end); + int ret; list_del(&entry->list); entry->start = new_start; entry->length = new_end - new_start + 1; - iommu_insert_resv_region(entry, regions); + ret = iommu_insert_resv_region(entry, regions); + kfree(entry); + return ret; } else { pos = pos->next; } @@ -229,7 +232,6 @@ insert: return -ENOMEM; list_add_tail(®ion->list, pos); -done: return 0; } @@ -611,6 +613,7 @@ err_put_group: mutex_unlock(&group->mutex); dev->iommu_group = NULL; kobject_put(group->devices_kobj); + sysfs_remove_link(group->devices_kobj, device->name); err_free_name: kfree(device->name); err_remove_link: @@ -1853,9 +1856,9 @@ int iommu_request_dm_for_dev(struct device *dev) int ret; /* Device must already be in a group before calling this function */ - group = iommu_group_get_for_dev(dev); - if (IS_ERR(group)) - return PTR_ERR(group); + group = iommu_group_get(dev); + if (!group) + return -EINVAL; mutex_lock(&group->mutex); |