_gnutls13_handshake_sign_data: properly fail on signing error

When signing failed, gnutls would return an invalid signed message
(with no data) instead of failing.

Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>

diff --git a/lib/tls13-sig.c b/lib/tls13-sig.c
index 1c5bc34c618adf27ede2f28d17a04d30a663402e..8eea6166b3c623c439f1764f818edfcf50ed157f 100644 (file)
--- a/lib/tls13-sig.c
+++ b/lib/tls13-sig.c
@@ -198,6 +198,7 @@ _gnutls13_handshake_sign_data(gnutls_session_t session,
        ret = gnutls_privkey_sign_data2(pkey, se->id, 0, &p, signature);
        if (ret < 0) {
                gnutls_assert();
+               goto cleanup;
        }
 
        ret = 0;