From 93347b3904962c80d6aeba0c3be4a75af2a13e83 Mon Sep 17 00:00:00 2001
From: Sebastian <sebasjm@gmail.com>
Date: Sun, 7 Feb 2021 20:11:24 -0300
Subject: fix #6745

---
 src/util/taler-exchange-secmod-rsa.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

(limited to 'src/util/taler-exchange-secmod-rsa.c')

diff --git a/src/util/taler-exchange-secmod-rsa.c b/src/util/taler-exchange-secmod-rsa.c
index 2f1cae2c9..ebd2d375b 100644
--- a/src/util/taler-exchange-secmod-rsa.c
+++ b/src/util/taler-exchange-secmod-rsa.c
@@ -1798,13 +1798,16 @@ do_shutdown (void *cls)
     done_task = NULL;
   }
   /* shut down worker threads */
-  GNUNET_assert (0 == pthread_mutex_lock (&work_lock));
-  in_shutdown = true;
-  GNUNET_assert (0 == pthread_cond_broadcast (&work_cond));
-  GNUNET_assert (0 == pthread_mutex_unlock (&work_lock));
-  for (unsigned int i = 0; i<num_workers; i++)
-    GNUNET_assert (0 == pthread_join (workers[i],
-                                      NULL));
+  if (NULL != workers)
+  {
+    GNUNET_assert (0 == pthread_mutex_lock (&work_lock));
+    in_shutdown = true;
+    GNUNET_assert (0 == pthread_cond_broadcast (&work_cond));
+    GNUNET_assert (0 == pthread_mutex_unlock (&work_lock));
+    for (unsigned int i = 0; i<num_workers; i++)
+      GNUNET_assert (0 == pthread_join (workers[i],
+                                        NULL));
+  }
   if (NULL != done_signal)
   {
     GNUNET_break (GNUNET_OK ==
-- 
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