ASoC: amd: memory release for rtd structure

rtd structure freed early may result in kernel panic in dma close
call back. moved releasing memory for rtd structure to the end of
dma close callback.
Signed-off-by: NVijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: NDaniel Kurtz <djkurtz@chromium.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/amd/acp-pcm-dma.c

@@ -998,8 +998,6 @@ static int acp_dma_close(struct snd_pcm_substream *substream)
 								    DRV_NAME);
 	struct audio_drv_data *adata = dev_get_drvdata(component->dev);
 
-	kfree(rtd);
-
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		adata->play_i2ssp_stream = NULL;
 		/*
@@ -1028,7 +1026,7 @@ static int acp_dma_close(struct snd_pcm_substream *substream)
 	 */
 	if (!adata->play_i2ssp_stream && !adata->capture_i2ssp_stream)
 		acp_reg_write(0, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
-
+	kfree(rtd);
 	return 0;
 }