v15-rc1 regression: No sound via usb-audio

[JÃrg Otte]

With v15-rc1 "alsamixer" has no volume control for usb sound boxes.
The sound boxes have been working well for years so this a regression.

Reverting commit:
8428a8e: "ALSA: usb-audio: Fix potential zero-division at parsing FU"

fixes the problem for me completely.


Thanks, JÃrg