From 8d8bbc6f17b2a28c58de804064dbdab036d4318e Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 22 Feb 2012 12:26:38 +0100
Subject: [PATCH] ALSA: hda/via - Don't create duplicated boost controls

The driver may create duplicated mic boost controls when there are
multiple mics with the very same type / location, and this leads to
the error at actual kcontrol creation.  It needs to check the validity
of the created control and add a proper index if it's duplicated.

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