855 	struct moschip_port *port0;  in mos7840_open()  local
866 	port0 = mos7840_get_port_private(serial->port[0]);  in mos7840_open()
868 	if (mos7840_port == NULL || port0 == NULL)  in mos7840_open()
873 	port0->open_ports++;  in mos7840_open()
1027 	if (port0->open_ports == 1) {  in mos7840_open()
1161 	struct moschip_port *port0;  in mos7840_close()  local
1173 	port0 = mos7840_get_port_private(serial->port[0]);  in mos7840_close()
1175 	if (mos7840_port == NULL || port0 == NULL)  in mos7840_close()
1192 	port0->open_ports--;  in mos7840_close()
1193 	dev_dbg(&port->dev, "%s in close%d\n", __func__, port0->open_ports);  in mos7840_close()
1194 	if (port0->open_ports == 0) {  in mos7840_close()