--- linux-4.9.37/drivers/dma-buf/sw_sync.c	2017-07-12 16:42:41.000000000 +0300
+++ linux-4.9.y/drivers/dma-buf/sw_sync.c	2021-06-07 13:01:33.000000000 +0300
@@ -234,6 +234,13 @@
 	return true;
 }
 
+static void timeline_fence_disable_signaling(struct fence *fence)
+{
+	struct sync_pt *pt = container_of(fence, struct sync_pt, base);
+
+	list_del_init(&pt->active_list);
+}
+
 static void timeline_fence_value_str(struct fence *fence,
 				    char *str, int size)
 {
@@ -252,6 +259,7 @@
 	.get_driver_name = timeline_fence_get_driver_name,
 	.get_timeline_name = timeline_fence_get_timeline_name,
 	.enable_signaling = timeline_fence_enable_signaling,
+	.disable_signaling = timeline_fence_disable_signaling,
 	.signaled = timeline_fence_signaled,
 	.wait = fence_default_wait,
 	.release = timeline_fence_release,
@@ -316,8 +324,8 @@
 	}
 
 	sync_file = sync_file_create(&pt->base);
+	fence_put(&pt->base);
 	if (!sync_file) {
-		fence_put(&pt->base);
 		err = -ENOMEM;
 		goto err;
 	}