X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fdma-buf%2Ffence.c;h=0ed73ad1b87628314b792479da3320d7a44d3e90;hb=968ccb6e8330739448c9fb40a6ed08013b17cbc7;hp=7b05dbe9b2964fd8c431dde0512a0ba2f4fd6ff2;hpb=a3767e3c9da514e63e898772b72b932f9eb3b062;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/dma-buf/fence.c b/drivers/dma-buf/fence.c
index 7b05dbe9b296..0ed73ad1b876 100644
--- a/drivers/dma-buf/fence.c
+++ b/drivers/dma-buf/fence.c
@@ -304,8 +304,12 @@ fence_remove_callback(struct fence *fence, struct fence_cb *cb)
 	spin_lock_irqsave(fence->lock, flags);
 
 	ret = !list_empty(&cb->node);
-	if (ret)
+	if (ret) {
 		list_del_init(&cb->node);
+		if (list_empty(&fence->cb_list))
+			if (fence->ops->disable_signaling)
+				fence->ops->disable_signaling(fence);
+	}
 
 	spin_unlock_irqrestore(fence->lock, flags);