r = dev->vhost_ops->vhost_get_vring_base(dev, &state);
if (r < 0) {
- VHOST_OPS_DEBUG("vhost VQ %d ring restore failed: %d", idx, r);
+ VHOST_OPS_DEBUG("vhost VQ %u ring restore failed: %d", idx, r);
/* Connection to the backend is broken, so let's sync internal
* last avail idx to the device used idx.
*/