linux-kernel - Re: [PATCH] ASoC: qdsp6: q6routing: Fix return value from msm_routing_put_audio

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Date:   Tue, 30 Nov 2021 16:22:29 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     lgirdwood@...il.com, perex@...ex.cz, tiwai@...e.com,
        pierre-louis.bossart@...ux.intel.com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ASoC: qdsp6: q6routing: Fix return value from
 msm_routing_put_audio_mixer



On 30/11/2021 16:17, Mark Brown wrote:
> On Tue, Nov 30, 2021 at 04:04:14PM +0000, Srinivas Kandagatla wrote:
>> msm_routing_put_audio_mixer() can return incorrect value in various scenarios.
>> Fix this, so that change notifications are sent correctly.
> 
> This really isn't a good commit message - I can't tell what the change
> is supposed to fix or how it fixes it.  Which values in which scenarios
> are incorrect in what way?

I agree,

the cases that get incorrect return values are:

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

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


I will add these details in next spin commit log.

--srini
>