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-rw-r--r--src/thread/sem_post.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/thread/sem_post.c b/src/thread/sem_post.c
index 14a2dfe2..31e3293d 100644
--- a/src/thread/sem_post.c
+++ b/src/thread/sem_post.c
@@ -3,7 +3,7 @@
 
 int sem_post(sem_t *sem)
 {
-	int val, waiters;
+	int val, waiters, priv = sem->__val[2];
 	do {
 		val = sem->__val[0];
 		waiters = sem->__val[1];
@@ -12,6 +12,6 @@ int sem_post(sem_t *sem)
 			return -1;
 		}
 	} while (a_cas(sem->__val, val, val+1+(val<0)) != val);
-	if (val<0 || waiters) __wake(sem->__val, 1, 0);
+	if (val<0 || waiters) __wake(sem->__val, 1, priv);
 	return 0;
 }