diff options
Diffstat (limited to 'drivers/iommu/iommufd/ioas.c')
| -rw-r--r-- | drivers/iommu/iommufd/ioas.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/iommu/iommufd/ioas.c b/drivers/iommu/iommufd/ioas.c index 1542c5fd10a8..459a7c516915 100644 --- a/drivers/iommu/iommufd/ioas.c +++ b/drivers/iommu/iommufd/ioas.c @@ -367,6 +367,10 @@ int iommufd_ioas_unmap(struct iommufd_ucmd *ucmd) &unmapped); if (rc) goto out_put; + if (!unmapped) { + rc = -ENOENT; + goto out_put; + } } cmd->length = unmapped; |