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virtio-scsi: don't uninitialize queues that we didn't initialize 

Count number of queues that we initialized and only deinitialize these that we
initialized successfully.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20201217150040.906961-3-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Maxim Levitsky 2020-12-17 17:00:39 +02:00 committed by Paolo Bonzini
parent e0f7fc588d
commit dec2bb14b8
1 changed files with 7 additions and 1 deletions
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8
hw/scsi/virtio-scsi-dataplane.c
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@ -126,6 +126,7 @@ int virtio_scsi_dataplane_start(VirtIODevice *vdev)
{
int i;
int rc;
int vq_init_count = 0;
BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev);
@ -153,17 +154,22 @@ int virtio_scsi_dataplane_start(VirtIODevice *vdev)
if (rc) {
goto fail_vrings;
}
vq_init_count++;
rc = virtio_scsi_vring_init(s, vs->event_vq, 1,
virtio_scsi_data_plane_handle_event);
if (rc) {
goto fail_vrings;
}
vq_init_count++;
for (i = 0; i < vs->conf.num_queues; i++) {
rc = virtio_scsi_vring_init(s, vs->cmd_vqs[i], i + 2,
virtio_scsi_data_plane_handle_cmd);
if (rc) {
goto fail_vrings;
}
vq_init_count++;
}
s->dataplane_starting = false;
@ -174,7 +180,7 @@ int virtio_scsi_dataplane_start(VirtIODevice *vdev)
fail_vrings:
aio_wait_bh_oneshot(s->ctx, virtio_scsi_dataplane_stop_bh, s);
aio_context_release(s->ctx);
for (i = 0; i < vs->conf.num_queues + 2; i++) {
for (i = 0; i < vq_init_count; i++) {
virtio_bus_set_host_notifier(VIRTIO_BUS(qbus), i, false);
virtio_bus_cleanup_host_notifier(VIRTIO_BUS(qbus), i);
}