diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 9e495244eee2198613b32c6edf05258b77c2d7af..439f047929e18e509961214878ffd36233d71371 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -2205,7 +2205,6 @@ static int snd_pcm_release(struct inode *inode, struct file *file)
 	pcm_file = file->private_data;
 	substream = pcm_file->substream;
 	snd_assert(substream != NULL, return -ENXIO);
-	snd_assert(!atomic_read(&substream->mmap_count), );
 	pcm = substream->pcm;
 	fasync_helper(-1, file, 0, &substream->runtime->fasync);
 	mutex_lock(&pcm->open_mutex);