fix several locks that weren't updated right for new futex-based __lock

these could have caused memory corruption due to invalid accesses to
the next field. all should be fixed now; I found the errors with fgrep
-r '__lock(&', which is bogus since the argument should be an array.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/thread/pthread_detach.c b/src/thread/pthread_detach.c
index e8032398..651c38eb 100644
--- a/src/thread/pthread_detach.c
+++ b/src/thread/pthread_detach.c
@@ -3,9 +3,9 @@
 int pthread_detach(pthread_t t)
 {
 	/* Cannot detach a thread that's already exiting */
-	if (a_swap(&t->exitlock, 1))
+	if (a_swap(t->exitlock, 1))
 		return pthread_join(t, 0);
 	t->detached = 2;
-	a_store(&t->exitlock, 0);
+	__unlock(t->exitlock);
 	return 0;
 }