Takashi Iwai 4f799e7340 ALSA: hda: Make snd_hdac_display_power() void function ...

After the recent refactoring, snd_hdac_display_power() doesn't return
any error, hence it can be defined to return void.
This makes many error checks redundant and allows us to reduce them
gracefully.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

2018-12-11 08:18:25 +01:00

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