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authorGerd Hoffmann <kraxel@redhat.com>2014-04-17 12:43:26 +0200
committerGerd Hoffmann <kraxel@redhat.com>2014-04-29 10:46:29 +0200
commit4843877e5d7d9ef4fdd29ac14ee1ce55531a0fc4 (patch)
tree91a76e742c8639235af162ffef6800258dfd6726 /hw
parente2da502c003b9a91b4aea7684959192bd07c1f1d (diff)
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>
Diffstat (limited to 'hw')
-rw-r--r--hw/audio/hda-codec.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/audio/hda-codec.c b/hw/audio/hda-codec.c
index a67ca91ca7..48c6eadb03 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 {