migration: Route errors up through vmstate_save
Route the errors from vsmtate_save_state back up through vmstate_save and out to the normal device state path. That's the normal error path done. Signed-off-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170925112917.21340-6-dgilbert@redhat.com> Reviewed-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NCornelia Huck <cohuck@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
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