[alsa-devel] [RFC PATCH 31/40] soundwire: intel: move shutdown() callback and don't export symbol

[Cezary Rojewski]

On 2019-07-26 01:40, Pierre-Louis Bossart wrote:
> +void intel_shutdown(struct snd_pcm_substream *substream,
> +		    struct snd_soc_dai *dai)
> +{
> +	struct sdw_cdns_dma_data *dma;
> +
> +	dma = snd_soc_dai_get_dma_data(dai, substream);
> +	if (!dma)
> +		return;
> +
> +	snd_soc_dai_set_dma_data(dai, substream, NULL);
> +	kfree(dma);
> +}

Correct me if I'm wrong, but do we really need to _get_dma_ here?
_set_dma_ seems bulletproof, same for kfree.