debug lk

hc

2024-02-20 e636c8d336489bf3eed5878299e6cc045bbad077

 kernel/drivers/gpu/drm/vkms/vkms_drv.c
..
..
@@ -61,7 +61,8 @@
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 {
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 	struct vkms_device *vkms = container_of(dev, struct vkms_device, drm);
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-	destroy_workqueue(vkms->output.composer_workq);
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+	if (vkms->output.composer_workq)
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+		destroy_workqueue(vkms->output.composer_workq);
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 }
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 static void vkms_atomic_commit_tail(struct drm_atomic_state *old_state)