ASoC: qcom: lpass-platform: fix memory leak

[ Upstream commit 5fd1882 ]

lpass_pcm_data is never freed. Free it in close
ops to avoid memory leak.

Fixes: 022d00e ("ASoC: lpass-platform: Fix broken pcm data usage")
Signed-off-by: Rohit kumar <rohitkr@codeaurora.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/1597402388-14112-5-git-send-email-rohitkr@codeaurora.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

sound/soc/qcom/lpass-platform.c

@@ -61,7 +61,7 @@ static int lpass_platform_pcmops_open(struct snd_soc_component *component,
 	int ret, dma_ch, dir = substream->stream;
 	struct lpass_pcm_data *data;
 
-	data = devm_kzalloc(soc_runtime->dev, sizeof(*data), GFP_KERNEL);
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -118,6 +118,7 @@ static int lpass_platform_pcmops_close(struct snd_soc_component *component,
 	if (v->free_dma_channel)
 		v->free_dma_channel(drvdata, data->dma_ch);
 
+	kfree(data);
 	return 0;
 }