diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 969a85960e9f..280ee66ae552 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -276,8 +276,8 @@ static void copy_iovec_hdr(const struct iovec *from, struct iovec *to,
  * of used idx. Once lower device DMA done contiguously, we will signal KVM
  * guest used idx.
  */
-static int vhost_zerocopy_signal_used(struct vhost_net *net,
-				      struct vhost_virtqueue *vq)
+static void vhost_zerocopy_signal_used(struct vhost_net *net,
+				       struct vhost_virtqueue *vq)
 {
 	struct vhost_net_virtqueue *nvq =
 		container_of(vq, struct vhost_net_virtqueue, vq);
@@ -297,7 +297,6 @@ static int vhost_zerocopy_signal_used(struct vhost_net *net,
 	}
 	if (j)
 		nvq->done_idx = i;
-	return j;
 }
 
 static void vhost_zerocopy_callback(struct ubuf_info *ubuf, bool success)