When creating null devices, there is no way to ensure the unicity of
the labels. Bail out with an error message instead.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
static void serial_init_core(SerialState *s, qemu_irq irq, int baudbase,
CharDriverState *chr)
{
+ if (!chr) {
+ fprintf(stderr, "Can't create serial device, empty char device\n");
+ exit(1);
+ }
+
s->irq = irq;
s->baudbase = baudbase;
- s->chr = chr ?: qemu_chr_open("null", "null", NULL);
+ s->chr = chr;
s->modem_status_poll = qemu_new_timer(vm_clock, (QEMUTimerCB *) serial_update_msl, s);