fctl_busy_port
if (fctl_busy_port(port) != 0) {
return (fctl_busy_port(port));
if (fctl_busy_port(port) == 0) {
if (fctl_busy_port(port) != 0) {
ret = fctl_busy_port(port);
int fctl_busy_port(fc_local_port_t *port);