From 88627af6a397a41d476a14a4c85136676fb3e59e Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Wed, 27 Jan 2021 18:57:39 +0100
Subject: fix #6726

---
 src/util/taler-exchange-secmod-eddsa.c | 2 ++
 src/util/taler-exchange-secmod-rsa.c   | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/src/util/taler-exchange-secmod-eddsa.c b/src/util/taler-exchange-secmod-eddsa.c
index cd3fc22f1..8f458f5e3 100644
--- a/src/util/taler-exchange-secmod-eddsa.c
+++ b/src/util/taler-exchange-secmod-eddsa.c
@@ -383,6 +383,8 @@ sign_worker (void *cls)
       }
       GNUNET_assert (0 == pthread_mutex_lock (&work_lock));
     }
+    if (! in_shutdown)
+      break;
     /* queue is empty, wait for work */
     GNUNET_assert (0 ==
                    pthread_cond_wait (&work_cond,
diff --git a/src/util/taler-exchange-secmod-rsa.c b/src/util/taler-exchange-secmod-rsa.c
index 41d78bcf3..27d3d7a96 100644
--- a/src/util/taler-exchange-secmod-rsa.c
+++ b/src/util/taler-exchange-secmod-rsa.c
@@ -446,6 +446,8 @@ sign_worker (void *cls)
       }
       GNUNET_assert (0 == pthread_mutex_lock (&work_lock));
     }
+    if (! in_shutdown)
+      break;
     /* queue is empty, wait for work */
     GNUNET_assert (0 ==
                    pthread_cond_wait (&work_cond,
-- 
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