From: Fam Zheng <f...@redhat.com> We need to count the ctrlq and eventq, and also cleanup before returning. Besides, the format string should be unsigned.
The number could never be less than zero. Signed-off-by: Fam Zheng <f...@redhat.com> Signed-off-by: Paolo Bonzini <pbonz...@redhat.com> --- hw/scsi/virtio-scsi.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c index 235c205..fdcacfd 100644 --- a/hw/scsi/virtio-scsi.c +++ b/hw/scsi/virtio-scsi.c @@ -804,10 +804,11 @@ void virtio_scsi_common_realize(DeviceState *dev, Error **errp, virtio_init(vdev, "virtio-scsi", VIRTIO_ID_SCSI, sizeof(VirtIOSCSIConfig)); - if (s->conf.num_queues <= 0 || s->conf.num_queues > VIRTIO_PCI_QUEUE_MAX) { - error_setg(errp, "Invalid number of queues (= %" PRId32 "), " + if (s->conf.num_queues == 0 || + s->conf.num_queues > VIRTIO_PCI_QUEUE_MAX - 2) { + error_setg(errp, "Invalid number of queues (= %" PRIu32 "), " "must be a positive integer less than %d.", - s->conf.num_queues, VIRTIO_PCI_QUEUE_MAX); + s->conf.num_queues, VIRTIO_PCI_QUEUE_MAX - 2); virtio_cleanup(vdev); return; } -- 1.8.3.1