From 332a37292c1db7261ebc6bb6fbb9ceacd7cc3220 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Fri, 6 Oct 2017 21:54:55 +0200
Subject: handle (most) TEH_KS_acquire errors

---
 src/exchange/taler-exchange-httpd_refresh_reveal.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

(limited to 'src/exchange/taler-exchange-httpd_refresh_reveal.c')

diff --git a/src/exchange/taler-exchange-httpd_refresh_reveal.c b/src/exchange/taler-exchange-httpd_refresh_reveal.c
index cfb2b68ac..5d857fcae 100644
--- a/src/exchange/taler-exchange-httpd_refresh_reveal.c
+++ b/src/exchange/taler-exchange-httpd_refresh_reveal.c
@@ -531,7 +531,7 @@ refresh_reveal_transaction (void *cls,
   for (unsigned int i=0;i<TALER_CNC_KAPPA;i++)
   {
     int res;
-    
+
     if (i == rc->refresh_session.noreveal_index)
     {
       off = 1;
@@ -542,7 +542,7 @@ refresh_reveal_transaction (void *cls,
 						 rc->refresh_session.num_newcoins,
 						 rc->commit_coins);
       if (0 >= qs)
-      {	
+      {
 	cleanup_rc (rc);
         GNUNET_CRYPTO_hash_context_abort (hash_context);
 	if (GNUNET_DB_STATUS_SOFT_ERROR == qs)
@@ -596,7 +596,7 @@ refresh_reveal_transaction (void *cls,
     cleanup_rc (rc);
     return GNUNET_DB_STATUS_HARD_ERROR;
   }
-  
+
   /* Client request OK, sign coins */
   rc->ev_sigs = GNUNET_new_array (rc->refresh_session.num_newcoins,
 				  struct TALER_DenominationSignature);
@@ -604,6 +604,12 @@ refresh_reveal_transaction (void *cls,
     struct TEH_KS_StateHandle *key_state;
 
     key_state = TEH_KS_acquire ();
+    if (NULL == key_state)
+    {
+      TALER_LOG_ERROR ("Lacking keys to operate\n");
+      cleanup_rc (rc);
+      return GNUNET_DB_STATUS_HARD_ERROR;
+    }
     for (unsigned int j=0;j<rc->refresh_session.num_newcoins;j++)
     {
       qs = refresh_exchange_coin (connection,
-- 
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