Exposing the on-stack error code with internal error is cheap and
potentially useful.
Signed-off-by: NRadim Krčmář <rkrcmar@redhat.com>
Message-Id: <1428001865-32280-1-git-send-email-rkrcmar@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>