diff options
| -rw-r--r-- | src/thread/pthread_spin_trylock.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/thread/pthread_spin_trylock.c b/src/thread/pthread_spin_trylock.c index c12696b3..1fc5f73c 100644 --- a/src/thread/pthread_spin_trylock.c +++ b/src/thread/pthread_spin_trylock.c @@ -2,5 +2,6 @@ int pthread_spin_trylock(pthread_spinlock_t *s) { - return -a_xchg(s, 1) & EBUSY; + if (*s || a_xchg(s, 1)) return EBUSY; + return 0; } |