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-rw-r--r--drivers/iommu/iommu.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 8ea14f4..9170fd4 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -1082,8 +1082,12 @@ static int iommu_bus_notifier(struct notifier_block *nb,
* result in ADD/DEL notifiers to group->notifier
*/
if (action == BUS_NOTIFY_ADD_DEVICE) {
- if (ops->add_device)
- return ops->add_device(dev);
+ if (ops->add_device) {
+ int ret;
+
+ ret = ops->add_device(dev);
+ return (ret) ? NOTIFY_DONE : NOTIFY_OK;
+ }
} else if (action == BUS_NOTIFY_REMOVED_DEVICE) {
if (ops->remove_device && dev->iommu_group) {
ops->remove_device(dev);
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