--- zzzz-none-000/linux-3.10.107/sound/sparc/cs4231.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/sound/sparc/cs4231.c	2021-02-04 17:41:59.000000000 +0000
@@ -429,7 +429,8 @@
 		unsigned int period_size = snd_pcm_lib_period_bytes(substream);
 		unsigned int offset = period_size * (*periods_sent);
 
-		BUG_ON(period_size >= (1 << 24));
+		if (WARN_ON(period_size >= (1 << 24)))
+			return;
 
 		if (dma_cont->request(dma_cont,
 				      runtime->dma_addr + offset, period_size))
@@ -906,18 +907,24 @@
 	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	unsigned long flags;
+	int ret = 0;
 
 	spin_lock_irqsave(&chip->lock, flags);
 
 	chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
 					    CS4231_PLAYBACK_PIO);
 
-	BUG_ON(runtime->period_size > 0xffff + 1);
+	if (WARN_ON(runtime->period_size > 0xffff + 1)) {
+		ret = -EINVAL;
+		goto out;
+	}
 
 	chip->p_periods_sent = 0;
+
+out:
 	spin_unlock_irqrestore(&chip->lock, flags);
 
-	return 0;
+	return ret;
 }
 
 static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
@@ -1278,19 +1285,11 @@
 static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol,
 			       struct snd_ctl_elem_info *uinfo)
 {
-	static char *texts[4] = {
+	static const char * const texts[4] = {
 		"Line", "CD", "Mic", "Mix"
 	};
 
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 2;
-	uinfo->value.enumerated.items = 4;
-	if (uinfo->value.enumerated.item > 3)
-		uinfo->value.enumerated.item = 3;
-	strcpy(uinfo->value.enumerated.name,
-		texts[uinfo->value.enumerated.item]);
-
-	return 0;
+	return snd_ctl_enum_info(uinfo, 2, 4, texts);
 }
 
 static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol,
@@ -1558,7 +1557,8 @@
 
 static int dev;
 
-static int cs4231_attach_begin(struct snd_card **rcard)
+static int cs4231_attach_begin(struct platform_device *op,
+			       struct snd_card **rcard)
 {
 	struct snd_card *card;
 	struct snd_cs4231 *chip;
@@ -1574,8 +1574,8 @@
 		return -ENOENT;
 	}
 
-	err = snd_card_create(index[dev], id[dev], THIS_MODULE,
-			      sizeof(struct snd_cs4231), &card);
+	err = snd_card_new(&op->dev, index[dev], id[dev], THIS_MODULE,
+			   sizeof(struct snd_cs4231), &card);
 	if (err < 0)
 		return err;
 
@@ -1862,7 +1862,7 @@
 	struct snd_card *card;
 	int err;
 
-	err = cs4231_attach_begin(&card);
+	err = cs4231_attach_begin(op, &card);
 	if (err)
 		return err;
 
@@ -2053,7 +2053,7 @@
 	struct snd_card *card;
 	int err;
 
-	err = cs4231_attach_begin(&card);
+	err = cs4231_attach_begin(op, &card);
 	if (err)
 		return err;
 
@@ -2111,7 +2111,6 @@
 static struct platform_driver cs4231_driver = {
 	.driver = {
 		.name = "audio",
-		.owner = THIS_MODULE,
 		.of_match_table = cs4231_match,
 	},
 	.probe		= cs4231_probe,