pthread_barrier_wait: properly check the wait condition

libusb · Nov 19, 2023 · dae9e11 · dae9e11
1 parent 4168d87
commit dae9e11
Showing 1 changed file with 7 additions and 5 deletions.
diff --git a/mac/hid.c b/mac/hid.c
@@ -83,16 +83,18 @@ static int pthread_barrier_wait(pthread_barrier_t *barrier)
 {
 	pthread_mutex_lock(&barrier->mutex);
 	++(barrier->count);
-	if(barrier->count >= barrier->trip_count)
-	{
+	if(barrier->count >= barrier->trip_count) {
 		barrier->count = 0;
 		pthread_cond_broadcast(&barrier->cond);
 		pthread_mutex_unlock(&barrier->mutex);
 		return 1;
 	}
-	else
-	{
-		pthread_cond_wait(&barrier->cond, &(barrier->mutex));
+	else {
+		do {
+			pthread_cond_wait(&barrier->cond, &(barrier->mutex));
+		}
+		while (!(barrier->count >= barrier->trip_count));
+
 		pthread_mutex_unlock(&barrier->mutex);
 		return 0;
 	}