For any other error sync_cmos_clock() will reschedule itself
every second or so, for no good reason.
Suggested-by: NPaolo Bonzini <pbonzini@redhat.com>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Signed-off-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>