diff options
| -rw-r--r-- | drivers/vfio/vfio_iommu_type1.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c index b88ad1e5e7ff..7274fe27ccac 100644 --- a/drivers/vfio/vfio_iommu_type1.c +++ b/drivers/vfio/vfio_iommu_type1.c @@ -1361,6 +1361,8 @@ static void vfio_sanity_check_pfn_list(struct vfio_iommu *iommu) if (WARN_ON(!RB_EMPTY_ROOT(&dma->pfn_list))) break; } + /* mdev vendor driver must unregister notifier */ + WARN_ON(iommu->notifier.head); } static void vfio_iommu_type1_detach_group(void *iommu_data, |