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authorDr. David Alan Gilbert <dgilbert@redhat.com>2017-09-25 12:29:17 +0100
committerDr. David Alan Gilbert <dgilbert@redhat.com>2017-09-27 11:44:18 +0100
commit2f168d0708581c33baf6c78d75a89e8cd705f9f6 (patch)
treefd78df5cfa57d44091879e6906fd4d5736e35747 /hw/virtio
parent687433f61173a9ed80609f16f8bc4b9255bd815c (diff)
migration: Route more error paths
vmstate_save_state is called in lots of places. Route error returns from the easier cases back up; there are lots of more complex cases where their own error paths need fixing. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170925112917.21340-7-dgilbert@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Commit message fix up as Peter's review
Diffstat (limited to 'hw/virtio')
-rw-r--r--hw/virtio/virtio.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 3129d25c00..311929e9df 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1897,7 +1897,7 @@ static const VMStateDescription vmstate_virtio = {
}
};
-void virtio_save(VirtIODevice *vdev, QEMUFile *f)
+int virtio_save(VirtIODevice *vdev, QEMUFile *f)
{
BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
@@ -1947,20 +1947,21 @@ void virtio_save(VirtIODevice *vdev, QEMUFile *f)
}
if (vdc->vmsd) {
- vmstate_save_state(f, vdc->vmsd, vdev, NULL);
+ int ret = vmstate_save_state(f, vdc->vmsd, vdev, NULL);
+ if (ret) {
+ return ret;
+ }
}
/* Subsections */
- vmstate_save_state(f, &vmstate_virtio, vdev, NULL);
+ return vmstate_save_state(f, &vmstate_virtio, vdev, NULL);
}
/* A wrapper for use as a VMState .put function */
static int virtio_device_put(QEMUFile *f, void *opaque, size_t size,
VMStateField *field, QJSON *vmdesc)
{
- virtio_save(VIRTIO_DEVICE(opaque), f);
-
- return 0;
+ return virtio_save(VIRTIO_DEVICE(opaque), f);
}
/* A wrapper for use as a VMState .get function */