On Mon, Mar 08, 2021 at 02:47:40PM -0700, Alex Williamson wrote: > Rather than an errno, return a pointer to the opaque vfio_device > to allow the bus driver to call into vfio-core without additional > lookups and references. Note that bus drivers are still required > to use vfio_del_group_dev() to teardown the vfio_device. > > Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx> This looks like it is superseded by the vfio: Split creation of a vfio_device into init and register ops patch from Jason, which provides a much nicer API.