ALSA: usb-audio: scarlett2: Add temp variable for consistency

Add index temporary variable to scarlett2_mixer_ctl_put() for
consistency with the other *_ctl_put() functions.

Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://lore.kernel.org/r/20210620164641.GA9211@m.b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Geoffrey D. Bennett 2021-06-21 02:16:41 +09:30 • committed by Takashi Iwai
commit 3eeb2a19db