diff options
Diffstat (limited to 'drivers/vfio/container.c')
| -rw-r--r-- | drivers/vfio/container.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/vfio/container.c b/drivers/vfio/container.c index d97747dfb05d..8772dad68085 100644 --- a/drivers/vfio/container.c +++ b/drivers/vfio/container.c @@ -516,8 +516,11 @@ int vfio_group_use_container(struct vfio_group *group) { lockdep_assert_held(&group->group_lock); - if (!group->container || !group->container->iommu_driver || - WARN_ON(!group->container_users)) + /* + * The container fd has been assigned with VFIO_GROUP_SET_CONTAINER but + * VFIO_SET_IOMMU hasn't been done yet. + */ + if (!group->container->iommu_driver) return -EINVAL; if (group->type == VFIO_NO_IOMMU && !capable(CAP_SYS_RAWIO)) |