in nsm-driver/nsm.c [392:403]
static int nsm_device_probe(struct virtio_device *vdev)
{
int rc = nsm_device_update(vdev);
if (rc) {
pr_err("NSM device probing failed: %d.", rc);
return rc;
}
pr_debug("NSM device has been probed.\n");
return 0;
}