Re: [PATCH v2 2/3] ASoC: qcom: q6apm-lpass-dais: Add MI2S clock control

[Mark Brown]

On Mon, Jun 08, 2026 at 08:00:10AM +0530, Mohammad Rafi Shaik wrote:
> Add support for MI2S clock control within q6apm-lpass DAIs, including
> handling of MCLK, BCLK, and ECLK via the DAI .set_sysclk callback.

> +static int q6i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir)
> +{
> +	struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev);
> +	struct clk *sysclk;
> +	bool *enabled;

Neither sysclk nor enabled are initialised by default...

> +	switch (clk_id) {

> +	case LPAIF_MI2S_ECLK:
> +		sysclk = dai_data->priv[dai->id].eclk;
> +		enabled = &dai_data->priv[dai->id].eclk_enabled;
> +		break;
> +	default:
> +		break;
> +	}
> +
> +	if (sysclk) {

...but we just fall through the switch statement if the clock ID is
invalid and use the values.

> +	for_each_child_of_node(dev->of_node, node) {

> +			if (IS_ERR(priv->mclk)) {
> +				if (PTR_ERR(priv->mclk) == -EPROBE_DEFER)
> +					return dev_err_probe(dev, PTR_ERR(priv->mclk),
> +							     "unable to get mi2s mclk\n");
> +				priv->mclk = NULL;
> +			}

Do we need to drop any OF references on early return?

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