X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=src%2Fthread%2Fpthread_cond_broadcast.c;h=6002c53507be55152328caacd3394614daa0dffd;hp=1d378c0b271b0420044a5dc842eba04f6c3887e0;hb=4b153ac42428447a148e6da543ebe6df017078db;hpb=e882756311c7b06e59fcc8e582f03852b7dcfd30

diff --git a/src/thread/pthread_cond_broadcast.c b/src/thread/pthread_cond_broadcast.c
index 1d378c0b..6002c535 100644
--- a/src/thread/pthread_cond_broadcast.c
+++ b/src/thread/pthread_cond_broadcast.c
@@ -2,7 +2,8 @@
 
 int pthread_cond_broadcast(pthread_cond_t *c)
 {
-	c->_c_block = 0;
-	__wake(&c->_c_block, -1, 0);
+	int w = c->_c_waiters;
+	if (a_swap(&c->_c_block, 0) || w)
+		__wake(&c->_c_block, -1, 0);
 	return 0;
 }