RE: [PATCH v4 9/9] vfio/pci: Allow passing zero-length fd array in VFIO_DEVICE_PCI_HOT_RESET

Tian, Kevin
2023-04-27T06:54:34Z

> From: Liu, Yi L <yi.l.liu@intel.com>
> Sent: Wednesday, April 26, 2023 10:54 PM
>
> +static bool vfio_dev_in_iommufd_ctx(struct vfio_pci_core_device *vdev,
> + struct iommufd_ctx *iommufd_ctx)
> +{
> + struct iommufd_ctx *iommufd = vfio_iommufd_physical_ictx(&vdev-
> >vdev);
> + struct iommu_group *iommu_group;
> +
> + if (!iommufd_ctx)
> + return false;
> +
> + if (iommufd == iommufd_ctx)
> + return true;
> +
> + iommu_group = iommu_group_get(vdev->vdev.dev);
> + if (!iommu_group)
> + return false;
> +
> + /*
> + * Try to check if any device within iommu_group is bound with
> + * the input iommufd_ctx.
> + */
> + return vfio_devset_iommufd_has_group(vdev->vdev.dev_set,
> + iommufd_ctx, iommu_group);

iommu_group is not put.