migration: Check field save returns
Check the return values from vmstate_save_state for fields and also the return values from 'put' for fields that use that. Signed-off-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170925112917.21340-4-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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