check return values

3 files changed, 10 insertions, 6 deletions

diff --git a/contrib/wallet-core b/contrib/wallet-core
-Subproject 8b667974a7c55fe542be8a58b0a9f20e3d62d77
+Subproject 87fec1cc645cc66b8a65b2264067f473e44b37d
diff --git a/doc/prebuilt b/doc/prebuilt
-Subproject ab2e09b5a3711ab04f1f77f79158cc006cab319
+Subproject c1a885ac1f9d9b2fdef19a976bed01dab4f7d85
diff --git a/src/backend/taler-merchant-httpd_post-orders-ID-pay.c b/src/backend/taler-merchant-httpd_post-orders-ID-pay.c
index fe18377a..1d084174 100644
--- a/src/backend/taler-merchant-httpd_post-orders-ID-pay.c
+++ b/src/backend/taler-merchant-httpd_post-orders-ID-pay.c
@@ -1508,15 +1508,19 @@ static json_t *
 build_token_sigs (struct PayContext *pc)
 {
   json_t *token_sigs = json_array ();
+
+  GNUNET_assert (NULL != token_sigs);
   for (unsigned int i = 0; i < pc->output_tokens_len; i++)
   {
-    json_array_append_new (token_sigs, GNUNET_JSON_PACK (
-                             GNUNET_JSON_pack_blinded_sig ("blind_sig", pc->
-                                                           output_tokens[i].sig.
-                                                           signature)
-                             ));
+    GNUNET_assert (0 ==
+                   json_array_append_new (
+                     token_sigs,
+                     GNUNET_JSON_PACK (
+                       GNUNET_JSON_pack_blinded_sig (
+                         "blind_sig",
+                         pc->output_tokens[i].sig.signature)
+                       )));
   }
-
   return token_sigs;
 }