On Tue, Jul 21, 2020 at 06:16:47PM +0800, Xin He wrote:

From: Qi Liu liuqi.16@bytedance.com

We should put the reference count of the fence after calling virtio_gpu_cmd_submit(). So add the missing dma_fence_put().

virtio_gpu_cmd_submit(vgdev, buf, exbuf->size, vfpriv->ctx_id, buflist, out_fence);

• dma_fence_put(&out_fence->f); virtio_gpu_notify(vgdev);

Pushed to drm-misc-fixes.

thanks, Gerd