From 0e73c0d4513a360ba3b5bcbe70ef4aeb59f68e3c Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sun, 7 May 2017 14:07:48 +0200
Subject: check json_pack return value, just to be nice

---
 src/exchange-lib/exchange_api_reserve.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/exchange-lib/exchange_api_reserve.c')

diff --git a/src/exchange-lib/exchange_api_reserve.c b/src/exchange-lib/exchange_api_reserve.c
index c7f59c25..89c4fdc0 100644
--- a/src/exchange-lib/exchange_api_reserve.c
+++ b/src/exchange-lib/exchange_api_reserve.c
@@ -1015,6 +1015,12 @@ TALER_EXCHANGE_reserve_withdraw (struct TALER_EXCHANGE_Handle *exchange,
                             "reserve_pub", GNUNET_JSON_from_data_auto (&wsh->reserve_pub),
                             "reserve_sig", GNUNET_JSON_from_data_auto (&reserve_sig));
   GNUNET_free (coin_ev);
+  if (NULL == withdraw_obj)
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+
 
   wsh->blinding_key = *blinding_key;
   wsh->url = MAH_path_to_url (exchange, "/reserve/withdraw");
-- 
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