From f2ba3508b31b2bfc5a3eb2db56600107fde6849e Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Mon, 3 Jun 2019 00:13:48 +0200
Subject: [PATCH] add missing unlock (on error path that is usually fatal
 anyway)

---
 src/exchange/taler-exchange-httpd_keystate.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/exchange/taler-exchange-httpd_keystate.c b/src/exchange/taler-exchange-httpd_keystate.c
index a452a1246..8b56813e3 100644
--- a/src/exchange/taler-exchange-httpd_keystate.c
+++ b/src/exchange/taler-exchange-httpd_keystate.c
@@ -1808,6 +1808,7 @@ TEH_KS_acquire_ (struct GNUNET_TIME_Absolute now,
     /* bump RC by 1 if we released internal_key_state above */
     if (NULL == internal_key_state)
     {
+      GNUNET_assert (0 == pthread_mutex_unlock (&internal_key_state_mutex));
       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 		  "Failed to initialize key state\n");
       return NULL;