diff options
| -rw-r--r-- | hw/scsi-bus.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/hw/scsi-bus.c b/hw/scsi-bus.c index 2cf2f0d8cf..2cb5a18da2 100644 --- a/hw/scsi-bus.c +++ b/hw/scsi-bus.c @@ -132,6 +132,10 @@ static int scsi_qdev_init(DeviceState *qdev) error_report("bad scsi device id: %d", dev->id); goto err; } + if (dev->lun != -1 && dev->lun > bus->info->max_lun) { + error_report("bad scsi device lun: %d", dev->lun); + goto err; + } if (dev->id == -1) { int id = -1; @@ -140,8 +144,8 @@ static int scsi_qdev_init(DeviceState *qdev) } do { d = scsi_device_find(bus, dev->channel, ++id, dev->lun); - } while (d && d->lun == dev->lun && id <= bus->info->max_target); - if (id > bus->info->max_target) { + } while (d && d->lun == dev->lun && id < bus->info->max_target); + if (d && d->lun == dev->lun) { error_report("no free target"); goto err; } @@ -151,14 +155,15 @@ static int scsi_qdev_init(DeviceState *qdev) do { d = scsi_device_find(bus, dev->channel, dev->id, ++lun); } while (d && d->lun == lun && lun < bus->info->max_lun); - if (lun > bus->info->max_lun) { + if (d && d->lun == lun) { error_report("no free lun"); goto err; } dev->lun = lun; } else { d = scsi_device_find(bus, dev->channel, dev->id, dev->lun); - if (dev->lun == d->lun && dev != d) { + assert(d); + if (d->lun == dev->lun && dev != d) { qdev_free(&d->qdev); } } @@ -217,7 +222,7 @@ int scsi_bus_legacy_handle_cmdline(SCSIBus *bus) int res = 0, unit; loc_push_none(&loc); - for (unit = 0; unit < bus->info->max_target; unit++) { + for (unit = 0; unit <= bus->info->max_target; unit++) { dinfo = drive_get(IF_SCSI, bus->busnr, unit); if (dinfo == NULL) { continue; |