diff --git a/sound/mips/hal2.c b/sound/mips/hal2.c
index 3318c15e324a81176886bc8996cd91b96a05dcfb..367d6c37b47ebade1086f94edfd008f1c6a04b59 100644
--- a/sound/mips/hal2.c
+++ b/sound/mips/hal2.c
@@ -496,7 +496,7 @@ static void hal2_free_dmabuf(struct hal2_codec *codec)
 		       DMA_ATTR_NON_CONSISTENT);
 }
 
-static struct snd_pcm_hardware hal2_pcm_hw = {
+static const struct snd_pcm_hardware hal2_pcm_hw = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_MMAP_VALID |
 		 SNDRV_PCM_INFO_INTERLEAVED |
diff --git a/sound/mips/sgio2audio.c b/sound/mips/sgio2audio.c
index 0ebc1c3727df86bd2da8f6f51742a801b64bac73..603892f0a7d6f35e9c63e1560d9cdbc7ec2dde2d 100644
--- a/sound/mips/sgio2audio.c
+++ b/sound/mips/sgio2audio.c
@@ -532,7 +532,7 @@ static irqreturn_t snd_sgio2audio_error_isr(int irq, void *dev_id)
 
 /* PCM part */
 /* PCM hardware definition */
-static struct snd_pcm_hardware snd_sgio2audio_pcm_hw = {
+static const struct snd_pcm_hardware snd_sgio2audio_pcm_hw = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_MMAP_VALID |
 		 SNDRV_PCM_INFO_INTERLEAVED |