diff --git a/sound/sh/sh_dac_audio.c b/sound/sh/sh_dac_audio.c
index e7b80328f0ef..a4d07438ad64 100644
--- a/sound/sh/sh_dac_audio.c
+++ b/sound/sh/sh_dac_audio.c
@@ -163,7 +163,7 @@ static int snd_sh_dac_pcm_copy(struct snd_pcm_substream *substream,
 	/* channel is not used (interleaved data) */
 	struct snd_sh_dac *chip = snd_pcm_substream_chip(substream);
 
-	if (copy_from_iter_toio(chip->data_buffer + pos, src, count))
+	if (copy_from_iter(chip->data_buffer + pos, src, count) != count)
 		return -EFAULT;
 	chip->buffer_end = chip->data_buffer + pos + count;
 
@@ -182,7 +182,7 @@ static int snd_sh_dac_pcm_silence(struct snd_pcm_substream *substream,
 	/* channel is not used (interleaved data) */
 	struct snd_sh_dac *chip = snd_pcm_substream_chip(substream);
 
-	memset_io(chip->data_buffer + pos, 0, count);
+	memset(chip->data_buffer + pos, 0, count);
 	chip->buffer_end = chip->data_buffer + pos + count;
 
 	if (chip->empty) {
@@ -211,7 +211,6 @@ static const struct snd_pcm_ops snd_sh_dac_pcm_ops = {
 	.pointer	= snd_sh_dac_pcm_pointer,
 	.copy		= snd_sh_dac_pcm_copy,
 	.fill_silence	= snd_sh_dac_pcm_silence,
-	.mmap		= snd_pcm_lib_mmap_iomem,
 };
 
 static int snd_sh_dac_pcm(struct snd_sh_dac *chip, int device)