Re: [PATCH v1] staging: greybus: audio: fix uninitialized value issue

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On Thu, Aug 06, 2020 at 09:51:57PM +0530, Vaibhav Agarwal wrote:
> diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c
> index 2f9fdbdcd547..4b914d0edef2 100644
> --- a/drivers/staging/greybus/audio_topology.c
> +++ b/drivers/staging/greybus/audio_topology.c
> @@ -456,6 +456,13 @@ static int gbcodec_mixer_dapm_ctl_put(struct snd_kcontrol *kcontrol,
>  	val = ucontrol->value.integer.value[0] & mask;
>  	connect = !!val;
>  
> +	ret = gb_pm_runtime_get_sync(bundle);
> +	if (ret)
> +		return ret;
> +
> +	ret = gb_audio_gb_get_control(module->mgmt_connection, data->ctl_id,
> +				      GB_AUDIO_INVALID_INDEX, &gbvalue);


We need to check "ret" after this.

> +
>  	/* update ucontrol */
>  	if (gbvalue.value.integer_value[0] != val) {
>  		for (wi = 0; wi < wlist->num_widgets; wi++) {
> @@ -466,16 +473,10 @@ static int gbcodec_mixer_dapm_ctl_put(struct snd_kcontrol *kcontrol,

regards,
dan carpenter

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