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5c7bebc1a3
When an error occurs in sysfs show callback, we should return the errno directly instead of formatting it as the result, which produces meaningless output and doesn't inform the userspace of the error. Fixes:468f96bfa3("platform/x86: panasonic-laptop: Add support for battery charging threshold (eco mode)") Fixes:d5a81d8e86("platform/x86: panasonic-laptop: Add support for optical driver power in Y and W series") Signed-off-by: Yao Zi <ziyao@disroot.org> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20241118064637.61832-3-ziyao@disroot.org Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>