Cleanup joinable threads on termination

Always invoke pthread_join() when we blow up a thread via
pthread_cancel() (avoid zombie threads).

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/io.c b/src/io.c
index b64dd58..22f8719 100644
--- a/src/io.c
+++ b/src/io.c
@@ -2927,7 +2927,10 @@ void
 io_stop_psave_thread (void)
 {
   if (io_t_psave)
-    pthread_cancel (io_t_psave);
+    {
+      pthread_cancel (io_t_psave);
+      pthread_join (io_t_psave, NULL);
+    }
 }
 
 /*