865 	struct moschip_port *port0;  in mos7840_open()  local
876 	port0 = mos7840_get_port_private(serial->port[0]);  in mos7840_open()
878 	if (mos7840_port == NULL || port0 == NULL)  in mos7840_open()
883 	port0->open_ports++;  in mos7840_open()
1037 	if (port0->open_ports == 1) {  in mos7840_open()
1173 	struct moschip_port *port0;  in mos7840_close()  local
1185 	port0 = mos7840_get_port_private(serial->port[0]);  in mos7840_close()
1187 	if (mos7840_port == NULL || port0 == NULL)  in mos7840_close()
1205 	port0->open_ports--;  in mos7840_close()
1206 	dev_dbg(&port->dev, "%s in close%d\n", __func__, port0->open_ports);  in mos7840_close()
1207 	if (port0->open_ports == 0) {  in mos7840_close()