X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fthread%2Fpthread_mutex_lock.c;h=99c15bd8f6f649c79f61c807341d049b878a3396;hb=86339bc4ba69ca5c88fd5570875cf17a275bd019;hp=56111ec84f8951c09bd06c54731a3a3085c1bf07;hpb=b1c43161c2b37e35eae60fa61621a24a5d820d83;p=musl

diff --git a/src/thread/pthread_mutex_lock.c b/src/thread/pthread_mutex_lock.c
index 56111ec8..99c15bd8 100644
--- a/src/thread/pthread_mutex_lock.c
+++ b/src/thread/pthread_mutex_lock.c
@@ -3,10 +3,14 @@
 int pthread_mutex_lock(pthread_mutex_t *m)
 {
 	int r;
+
+	if (m->_m_type == PTHREAD_MUTEX_NORMAL && !a_swap(&m->_m_lock, EBUSY))
+		return 0;
+
 	while ((r=pthread_mutex_trylock(m)) == EBUSY) {
-		if (!(r=m->_m_lock)) continue;
-		if (m->_m_type == PTHREAD_MUTEX_ERRORCHECK
-		 && r == pthread_self()->tid)
+		if (!(r=m->_m_lock) || (r&0x40000000)) continue;
+		if ((m->_m_type&3) == PTHREAD_MUTEX_ERRORCHECK
+		 && (r&0x1fffffff) == pthread_self()->tid)
 			return EDEADLK;
 		__wait(&m->_m_lock, &m->_m_waiters, r, 0);
 	}