X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fthread%2Fpthread_mutex_trylock.c;h=50a815a5fbf4dc22322347fa2ab4aaaeb98348b2;hb=b2486a8922bf4977bd82c8190258e39de28c053b;hp=f48aaadec3c761e83b42ad4052417972d8b5c30d;hpb=047e434ef5fd5437a74f98f63c40a77a683f7f3f;p=musl

diff --git a/src/thread/pthread_mutex_trylock.c b/src/thread/pthread_mutex_trylock.c
index f48aaade..50a815a5 100644
--- a/src/thread/pthread_mutex_trylock.c
+++ b/src/thread/pthread_mutex_trylock.c
@@ -7,15 +7,15 @@ int pthread_mutex_trylock(pthread_mutex_t *m)
 	pthread_t self;
 
 	if (m->_m_type == PTHREAD_MUTEX_NORMAL)
-		return (m->_m_lock || a_swap(&m->_m_lock, 1)) ? EBUSY : 0;
+		return -a_swap(&m->_m_lock, 1) & EBUSY;
 
 	self = pthread_self();
 	tid = self->tid | 0x80000000;
 
 	if (m->_m_type >= 4) {
 		if (!self->robust_list.off)
-			syscall2(__NR_set_robust_list,
-				(long)&self->robust_list, 3*sizeof(long));
+			syscall(SYS_set_robust_list,
+				&self->robust_list, 3*sizeof(long));
 		self->robust_list.off = (char*)&m->_m_lock-(char *)&m->_m_next;
 		self->robust_list.pending = &m->_m_next;
 	}