From: Qi Liu <liuqi...@bytedance.com>
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...@bytedance.com>
Signed-off-by: Xin He <hexin...@bytedance.com>
Signed-off-by: Qi Liu <liuqi...@bytedance.com>
Reviewed-by: Muchun Song <songmuc...@bytedance.com>
---
changelog in v3:
1) Change the subject from "drm/virtio: fixed memory leak in
virtio_gpu_execbuffer_ioctl()" to
"drm/virtio: fix missing dma_fence_put() in virtio_gpu_execbuffer_ioctl()"
2) Rework the commit log
changelog in v2:
1) Add a change description
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 5df722072ba0..19c5bc01eb79 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -179,6 +179,7 @@ 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;
--
2.21.1 (Apple Git-122.3)
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