[ACPI] acpi_remove_notify_handler() on video driver unload
The video driver doesn't properly remove all the notify handlers on module unload. This has a side effect of subdevices failing to register on module reload, but sudden death looms if the handlers trigger after the module is unloaded. Signed-off-by: NKarol Kozimor <sziwan@hell.org.pl> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLen Brown <len.brown@intel.com>
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