diff --git a/sound/sparc/amd7930.c b/sound/sparc/amd7930.c
index df1b16c97d16..916bed46be06 100644
--- a/sound/sparc/amd7930.c
+++ b/sound/sparc/amd7930.c
@@ -912,7 +912,7 @@ static int snd_amd7930_dev_free(struct snd_device *device)
 	return snd_amd7930_free(amd);
 }
 
-static struct snd_device_ops snd_amd7930_dev_ops = {
+static const struct snd_device_ops snd_amd7930_dev_ops = {
 	.dev_free	=	snd_amd7930_dev_free,
 };
 
diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index 1676d44769ad..476ffaa413d9 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -1771,7 +1771,7 @@ static int snd_cs4231_sbus_dev_free(struct snd_device *device)
 	return snd_cs4231_sbus_free(cp);
 }
 
-static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
+static const struct snd_device_ops snd_cs4231_sbus_dev_ops = {
 	.dev_free	=	snd_cs4231_sbus_dev_free,
 };
 
@@ -1937,7 +1937,7 @@ static int snd_cs4231_ebus_dev_free(struct snd_device *device)
 	return snd_cs4231_ebus_free(cp);
 }
 
-static struct snd_device_ops snd_cs4231_ebus_dev_ops = {
+static const struct snd_device_ops snd_cs4231_ebus_dev_ops = {
 	.dev_free	=	snd_cs4231_ebus_dev_free,
 };