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-rw-r--r--src/thread/pthread_spin_lock.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/thread/pthread_spin_lock.c b/src/thread/pthread_spin_lock.c
index 59fa6ea8..9e43f475 100644
--- a/src/thread/pthread_spin_lock.c
+++ b/src/thread/pthread_spin_lock.c
@@ -2,6 +2,6 @@
int pthread_spin_lock(pthread_spinlock_t *s)
{
- while (a_xchg(s, 1));
+ while (*s || a_xchg(s, 1));
return 0;
}