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For sysfs outputs, it's safer to use a new helper, sysfs_emit(), instead of the raw sprintf() & co. This patch replaces the open code straightforwardly with a new helper. Link: https://lore.kernel.org/r/20220801165639.26030-2-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>