diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 2376b09c35cf..23e17a58651b 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -588,7 +588,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
 		runtime->boundary *= 2;
 
 	/* clear the buffer for avoiding possible kernel info leaks */
-	if (runtime->dma_area)
+	if (runtime->dma_area && !substream->ops->copy)
 		memset(runtime->dma_area, 0, runtime->dma_bytes);
 
 	snd_pcm_timer_resolution_change(substream);