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由 Robert Foss 提交于
As per the documentation in drm_crtc.h, atomic_commit should return -EBUSY if an asynchronous update is requested and there is an earlier update pending. v2: Rebase on the s/async/nonblock/ change. Signed-off-by: NRobert Foss <robert.foss@collabora.com> Reviewed-by: NEric Anholt <eric@anholt.net>
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