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[ Upstream commit8508427a6e] A few, quite rare, WMI attributes have names that are not compatible with filenames, e.g. "Intel VT for Directed I/O (VT-d)". For these cases the '/' gets replaced with '\' for display, but doesn't get switched again when doing the WMI access. Fix this by keeping the original attribute name and using that for sending commands to the BIOS Fixes:a40cd7ef22("platform/x86: think-lmi: Add WMI interface support on Lenovo platforms") Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca> Link: https://lore.kernel.org/r/20250520005027.3840705-1-mpearson-lenovo@squebb.ca Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>