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

[Liu, Yi L]

> From: Tian, Kevin <kevin.tian at intel.com>
> Sent: Thursday, April 27, 2023 2:54 PM
> 
> > From: Liu, Yi L <yi.l.liu at 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.

Oops. Yes.