Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.
Signed-off-by: NBo Liu <liubo03@inspur.com>
Link: https://lore.kernel.org/r/20230201081438.3151-1-liubo03@inspur.comSigned-off-by: NPaolo Abeni <pabeni@redhat.com>