From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Sun, 9 Feb 2020 23:02:13 +0000 (+0000)
Subject: htl: Fix barrier_wait with one thread
X-Git-Tag: glibc-2.32~697
X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=f3a7ff069f74e4d6a89aba5fb9bba74f38d249c7;p=glibc.git

htl: Fix barrier_wait with one thread
---

diff --git a/sysdeps/htl/pt-barrier-wait.c b/sysdeps/htl/pt-barrier-wait.c
index 47ec440b26..146605abd8 100644
--- a/sysdeps/htl/pt-barrier-wait.c
+++ b/sysdeps/htl/pt-barrier-wait.c
@@ -29,7 +29,9 @@ pthread_barrier_wait (pthread_barrier_t *barrier)
     {
       barrier->__pending = barrier->__count;
 
-      if (barrier->__count > 1)
+      if (barrier->__count == 1)
+	__pthread_spin_unlock (&barrier->__lock);
+      else
 	{
 	  struct __pthread *wakeup;
 	  unsigned n = 0;