From: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu, 17 Apr 2014 10:43:26 +0000 (+0200)
Subject: hda-audio: fix non-mixer codecs
X-Git-Tag: TizenStudio_2.0_p2.3.2~208^2~877^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4843877e5d7d9ef4fdd29ac14ee1ce55531a0fc4;p=sdk%2Femulator%2Fqemu.git

hda-audio: fix non-mixer codecs

They don't advertise mixer support, but still allow the guest change
mixer settings.  Add a check to avoid it.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---

diff --git a/hw/audio/hda-codec.c b/hw/audio/hda-codec.c
index a67ca91..48c6ead 100644
--- a/hw/audio/hda-codec.c
+++ b/hw/audio/hda-codec.c
@@ -261,6 +261,9 @@ static void hda_audio_set_amp(HDAAudioStream *st)
     left = left * 255 / QEMU_HDA_AMP_STEPS;
     right = right * 255 / QEMU_HDA_AMP_STEPS;
 
+    if (!st->state->mixer) {
+        return;
+    }
     if (st->output) {
         AUD_set_volume_out(st->voice.out, muted, left, right);
     } else {