add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/pci/remove.c
..
..
@@ -160,6 +160,6 @@
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 	host_bridge->bus = NULL;
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 	/* remove the host bridge */
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-	device_unregister(&host_bridge->dev);
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+	device_del(&host_bridge->dev);
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 }
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 EXPORT_SYMBOL_GPL(pci_remove_root_bus);