summaryrefslogtreecommitdiff
path: root/src/thread/sem_post.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/thread/sem_post.c')
-rw-r--r--src/thread/sem_post.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/thread/sem_post.c b/src/thread/sem_post.c
index 0bd8a462..8f4700c3 100644
--- a/src/thread/sem_post.c
+++ b/src/thread/sem_post.c
@@ -3,7 +3,8 @@
int sem_post(sem_t *sem)
{
- if (!a_fetch_add(sem->__val, 1))
+ a_inc(sem->__val);
+ if (sem->__val[1])
__wake(sem->__val, 1, 0);
return 0;
}