From: Qi Liu liuqi.16@bytedance.com
[ Upstream commit 8b6ec999b198b59ae61e86e70f5e9df73fe4754f ]
We should put the reference count of the fence after calling virtio_gpu_cmd_submit(). So add the missing dma_fence_put().
Fixes: 2cd7b6f08bc4 ("drm/virtio: add in/out fence support for explicit synchronization") Co-developed-by: Xin He hexin.op@bytedance.com Signed-off-by: Xin He hexin.op@bytedance.com Signed-off-by: Qi Liu liuqi.16@bytedance.com Reviewed-by: Muchun Song songmuchun@bytedance.com Link: http://patchwork.freedesktop.org/patch/msgid/20200721101647.42653-1-hexin.op... Signed-off-by: Gerd Hoffmann kraxel@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index 512daff920387..1fc3fa00685d0 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -180,6 +180,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
virtio_gpu_cmd_submit(vgdev, buf, exbuf->size, vfpriv->ctx_id, buflist, out_fence); + dma_fence_put(&out_fence->f); virtio_gpu_notify(vgdev); return 0;