nvidia-drm: defer nv_drm_device free until final DRM reference - #1336
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irontom10 wants to merge 1 commit into
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nvidia-drm: defer nv_drm_device free until final DRM reference#1336irontom10 wants to merge 1 commit into
irontom10 wants to merge 1 commit into
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drm_dev_unplug() does not guarantee that userspace drm_file, GEM, or fence objects have been released. Those objects may retain nv_drm_device references and invoke cleanup later from drm_release(). Keep nv_drm_device alive as a DRM-managed resource and free it only when the final drm_dev_put() occurs. This prevents late fence teardown from dereferencing a freed nv_drm_device after surprise GPU removal.
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drm_dev_unplug() does not guarantee that userspace drm_file, GEM, or fence objects have been released. Those objects may retain nv_drm_device references and invoke cleanup later from drm_release().
Keep nv_drm_device alive as a DRM-managed resource and free it only when the final drm_dev_put() occurs. This prevents late fence teardown from dereferencing a freed nv_drm_device after surprise GPU removal.