diff --git a/sound/soc/qcom/qdsp6/q6apm-dai.c b/sound/soc/qcom/qdsp6/q6apm-dai.c
index 76ab30f90213..4a0af204ba8d 100644
--- a/sound/soc/qcom/qdsp6/q6apm-dai.c
+++ b/sound/soc/qcom/qdsp6/q6apm-dai.c
@@ -704,7 +704,9 @@ static int q6apm_dai_memory_map(struct snd_soc_component *component,
 	else
 		phys = substream->dma_buffer.addr | (pdata->sid << 32);
 
-	ret = q6apm_map_memory_fixed_region(dev, graph_id, phys, pdata->reserved_buf_size);
+	ret = q6apm_map_memory_fixed_region(dev, graph_id, phys,
+					    pdata->has_reserved_mem ?
+					    pdata->reserved_buf_size : BUFFER_BYTES_MAX);
 	if (ret < 0)
 		dev_err(dev, "Audio Start: Buffer Allocation failed rc = %d\n", ret);