diff options
| author | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2021-11-30 16:31:10 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-14 10:18:07 +0100 |
| commit | bf959d8e431d614bc124c5a97ac1c9c8cc6e4459 (patch) | |
| tree | 53ff2ae3b2639bbfd6fac5208d78d72f3b1bb087 /sound | |
| parent | 358544866727256a4184512913e03922968ec2c1 (diff) | |
| download | linux-stable-bf959d8e431d614bc124c5a97ac1c9c8cc6e4459.tar.gz linux-stable-bf959d8e431d614bc124c5a97ac1c9c8cc6e4459.tar.bz2 linux-stable-bf959d8e431d614bc124c5a97ac1c9c8cc6e4459.zip | |
ASoC: qdsp6: q6routing: Fix return value from msm_routing_put_audio_mixer
commit 4739d88ad8e1900f809f8a5c98f3c1b65bf76220 upstream.
msm_routing_put_audio_mixer() can return incorrect value in various scenarios.
scenario 1:
amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 1
amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 0
return value is 0 instead of 1 eventhough value was changed
scenario 2:
amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 1
amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 1
return value is 1 instead of 0 eventhough the value was not changed
scenario 3:
amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 0
return value is 1 instead of 0 eventhough the value was not changed
Fix this by adding checks, so that change notifications are sent correctly.
Fixes: e3a33673e845 ("ASoC: qdsp6: q6routing: Add q6routing driver")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211130163110.5628-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/qcom/qdsp6/q6routing.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sound/soc/qcom/qdsp6/q6routing.c b/sound/soc/qcom/qdsp6/q6routing.c index 7d2c5de38031..33ec1a744ab9 100644 --- a/sound/soc/qcom/qdsp6/q6routing.c +++ b/sound/soc/qcom/qdsp6/q6routing.c @@ -440,14 +440,16 @@ static int msm_routing_put_audio_mixer(struct snd_kcontrol *kcontrol, struct session_data *session = &data->sessions[session_id]; if (ucontrol->value.integer.value[0]) { + if (session->port_id == be_id) + return 0; + session->port_id = be_id; snd_soc_dapm_mixer_update_power(dapm, kcontrol, 1, update); } else { - if (session->port_id == be_id) { - session->port_id = -1; + if (session->port_id == -1 || session->port_id != be_id) return 0; - } + session->port_id = -1; snd_soc_dapm_mixer_update_power(dapm, kcontrol, 0, update); } |