On Mon, 09 Apr 2018 12:15:10 +0200
Greg Kurz <gr...@kaod.org> wrote:
> A recent patch fixed leaks of the dynamically allocated vcdev->vdev.name
> field in vfio_ccw_realize(), but we now have three freeing sites for it.
> This is unfortunate and seems to indicate something is wrong with its
> life cycle.
> The root issue is that vcdev->vdev.name is set before vfio_get_device()
> is called, which theoretically prevents to call vfio_put_device() to
> do the freeing. Well actually, we could call it anyway because
> vfio_put_base_device() is a nop if the device isn't attached, but this
> would be confusing.
> This patch hence moves all the logic of attaching the device, including
> the "already attached" check, to a separate vfio_ccw_get_device() function,
> counterpart of vfio_put_device(). While here, vfio_put_device() is renamed
> to vfio_ccw_put_device() for consistency.
> Based-on: <152311222681.203086.8874800175539040298.stgit@bahia>
> Signed-off-by: Greg Kurz <gr...@kaod.org>
> v3: - make vfio_ccw_get_device() void and check err in caller
> hw/vfio/ccw.c | 56 ++++++++++++++++++++++++++++++++++++--------------------
> 1 file changed, 36 insertions(+), 20 deletions(-)