platform/x86: wmi: more detailed error reporting in find_guid()
Make `find_guid()` return an acpi_status, and make it handle NULL pointer GUID strings; and adapt users accordingly. Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com> Link: https://lore.kernel.org/r/20210904175450.156801-31-pobrn@protonmail.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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