When converting to directly create the vfio_device the mdev driver has to put a vfio_register_emulated_iommu_dev() in the probe() and a pairing vfio_unregister_group_dev() in the remove. This was missed for gvt, add it. Cc: stable@xxxxxxxxxxxxxxx Fixes: 978cf586ac35 ("drm/i915/gvt: convert to use vfio_register_emulated_iommu_dev") Reported-by: Alex Williamson <alex.williamson@xxxxxxxxxx> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx> --- drivers/gpu/drm/i915/gvt/kvmgt.c | 1 + 1 file changed, 1 insertion(+) Should go through Alex's tree. diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 41bba40feef8f4..9003145adb5a93 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1615,6 +1615,7 @@ static void intel_vgpu_remove(struct mdev_device *mdev) if (WARN_ON_ONCE(vgpu->attached)) return; + vfio_unregister_group_dev(&vgpu->vfio_device); vfio_put_device(&vgpu->vfio_device); } base-commit: c72e0034e6d4c36322d958b997d11d2627c6056c -- 2.37.3