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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/sound/soc/codecs/rt274.c
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@@ -1,12 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * rt274.c  --  RT274 ALSA SoC audio codec driver
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  *
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  * Copyright 2017 Realtek Semiconductor Corp.
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  * Author: Bard Liao <bardliao@realtek.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/module.h>
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@@ -353,6 +350,7 @@
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 static int rt274_jack_detect(struct rt274_priv *rt274, bool *hp, bool *mic)
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 {
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 	unsigned int buf;
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+	int ret;
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 	*hp = false;
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 	*mic = false;
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@@ -360,9 +358,15 @@
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 	if (!rt274->component)
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 		return -EINVAL;
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-	regmap_read(rt274->regmap, RT274_GET_HP_SENSE, &buf);
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+	ret = regmap_read(rt274->regmap, RT274_GET_HP_SENSE, &buf);
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+	if (ret)
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+		return ret;
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+
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 	*hp = buf & 0x80000000;
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-	regmap_read(rt274->regmap, RT274_GET_MIC_SENSE, &buf);
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+	ret = regmap_read(rt274->regmap, RT274_GET_MIC_SENSE, &buf);
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+	if (ret)
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+		return ret;
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+
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 	*mic = buf & 0x80000000;
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 	pr_debug("*hp = %d *mic = %d\n", *hp, *mic);
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@@ -381,10 +385,10 @@
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 	if (rt274_jack_detect(rt274, &hp, &mic) < 0)
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 		return;
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-	if (hp == true)
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+	if (hp)
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 		status |= SND_JACK_HEADPHONE;
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-	if (mic == true)
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+	if (mic)
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 		status |= SND_JACK_MICROPHONE;
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 	snd_soc_jack_report(rt274->jack, status,
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@@ -756,6 +760,7 @@
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 		break;
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 	default:
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 		dev_warn(component->dev, "invalid pll source, use BCLK\n");
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+		fallthrough;
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 	case RT274_PLL2_S_BCLK:
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 		snd_soc_component_update_bits(component, RT274_PLL2_CTRL,
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 				RT274_PLL2_SRC_MASK, RT274_PLL2_SRC_BCLK);
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@@ -783,6 +788,7 @@
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 			break;
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 		default:
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 			dev_warn(component->dev, "invalid freq_in, assume 4.8M\n");
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+			fallthrough;
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 		case 100:
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 			snd_soc_component_write(component, 0x7a, 0xaab6);
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 			snd_soc_component_write(component, 0x7b, 0x0301);
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@@ -954,10 +960,10 @@
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 	ret = rt274_jack_detect(rt274, &hp, &mic);
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 	if (ret == 0) {
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-		if (hp == true)
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+		if (hp)
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 			status |= SND_JACK_HEADPHONE;
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-		if (mic == true)
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+		if (mic)
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 			status |= SND_JACK_MICROPHONE;
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 		snd_soc_jack_report(rt274->jack, status,
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@@ -1099,12 +1105,14 @@
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 };
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 MODULE_DEVICE_TABLE(i2c, rt274_i2c_id);
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+#ifdef CONFIG_ACPI
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 static const struct acpi_device_id rt274_acpi_match[] = {
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 	{ "10EC0274", 0 },
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 	{ "INT34C2", 0 },
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 	{},
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 };
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 MODULE_DEVICE_TABLE(acpi, rt274_acpi_match);
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+#endif
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 static int rt274_i2c_probe(struct i2c_client *i2c,
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 			   const struct i2c_device_id *id)