char *name = s3c24xx_serial_portname(port);
const char *name = s3c24xx_serial_portname(port);
static int s3c24xx_serial_request_port(struct uart_port *port){	char *name = s3c24xx_serial_portname(port);	return request_mem_region(port->mapbase, MAP_SIZE, name) ? 0 : -EBUSY;}