On Wed, Nov 29, 2017 at 09:23:01AM +0800, weiping zhang wrote: > index can be reused by other virtio device. > > Signed-off-by: weiping zhang <zhangweiping@xxxxxxxxxxxxxxx> Thanks! I've queued this up, this is needed on stable as well. > --- > drivers/virtio/virtio.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c > index 48230a5..bf7ff39 100644 > --- a/drivers/virtio/virtio.c > +++ b/drivers/virtio/virtio.c > @@ -333,6 +333,8 @@ int register_virtio_device(struct virtio_device *dev) > /* device_register() causes the bus infrastructure to look for a > * matching driver. */ > err = device_register(&dev->dev); > + if (err) > + ida_simple_remove(&virtio_index_ida, dev->index); > out: > if (err) > virtio_add_status(dev, VIRTIO_CONFIG_S_FAILED); > -- > 2.9.4