ALSA: hda - Add sanity check of vmaster slave dB steps

Check whether all vmaster slaves have the same dB steps.  Otherwise
the behavior would become inconsistent.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2013-11-04 15:51:00 +01:00
commit 485e3e0cdf