linux-kernel - [PATCH v3 1/6] ASoC: codecs: lpass-rx-macro: Simplify PDS cleanup with devm

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Date: Mon, 01 Jul 2024 09:39:33 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>, 
 Banajit Goswami <bgoswami@...cinc.com>, Liam Girdwood <lgirdwood@...il.com>, 
 Mark Brown <broonie@...nel.org>, Jaroslav Kysela <perex@...ex.cz>, 
 Takashi Iwai <tiwai@...e.com>
Cc: alsa-devel@...a-project.org, linux-arm-msm@...r.kernel.org, 
 linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v3 1/6] ASoC: codecs: lpass-rx-macro: Simplify PDS cleanup
 with devm

Eliminate PDS cleanup by using devm_add_action_or_reset() which results
in one less error path and smaller cleanup in remove().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

---

Changes in v3:
1. New patch
---
 sound/soc/codecs/lpass-macro-common.h |  5 +++++
 sound/soc/codecs/lpass-rx-macro.c     | 30 ++++++++++++------------------
 2 files changed, 17 insertions(+), 18 deletions(-)

diff --git a/sound/soc/codecs/lpass-macro-common.h b/sound/soc/codecs/lpass-macro-common.h
index 3aa9737f2737..21cb30ab706d 100644
--- a/sound/soc/codecs/lpass-macro-common.h
+++ b/sound/soc/codecs/lpass-macro-common.h
@@ -41,6 +41,11 @@ void lpass_macro_pds_exit(struct lpass_macro *pds);
 void lpass_macro_set_codec_version(enum lpass_codec_version version);
 enum lpass_codec_version lpass_macro_get_codec_version(void);
 
+static inline void lpass_macro_pds_exit_action(void *pds)
+{
+	lpass_macro_pds_exit(pds);
+}
+
 static inline const char *lpass_macro_get_codec_version_string(int version)
 {
 	switch (version) {
diff --git a/sound/soc/codecs/lpass-rx-macro.c b/sound/soc/codecs/lpass-rx-macro.c
index d47c49c90de3..77e734ad1885 100644
--- a/sound/soc/codecs/lpass-rx-macro.c
+++ b/sound/soc/codecs/lpass-rx-macro.c
@@ -3803,11 +3803,14 @@ static int rx_macro_probe(struct platform_device *pdev)
 	if (IS_ERR(rx->pds))
 		return PTR_ERR(rx->pds);
 
+	ret = devm_add_action_or_reset(dev, lpass_macro_pds_exit_action, rx->pds);
+	if (ret)
+		return ret;
+
 	base = devm_platform_ioremap_resource(pdev, 0);
-	if (IS_ERR(base)) {
-		ret = PTR_ERR(base);
-		goto err;
-	}
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
 	rx->codec_version = lpass_macro_get_codec_version();
 	switch (rx->codec_version) {
 	case LPASS_CODEC_VERSION_1_0:
@@ -3818,10 +3821,8 @@ static int rx_macro_probe(struct platform_device *pdev)
 		rx->rxn_reg_stride = 0x80;
 		def_count = ARRAY_SIZE(rx_defaults) + ARRAY_SIZE(rx_pre_2_5_defaults);
 		reg_defaults = kmalloc_array(def_count, sizeof(struct reg_default), GFP_KERNEL);
-		if (!reg_defaults) {
-			ret = -ENOMEM;
-			goto err;
-		}
+		if (!reg_defaults)
+			return -ENOMEM;
 		memcpy(&reg_defaults[0], rx_defaults, sizeof(rx_defaults));
 		memcpy(&reg_defaults[ARRAY_SIZE(rx_defaults)],
 				rx_pre_2_5_defaults, sizeof(rx_pre_2_5_defaults));
@@ -3833,18 +3834,15 @@ static int rx_macro_probe(struct platform_device *pdev)
 		rx->rxn_reg_stride = 0xc0;
 		def_count = ARRAY_SIZE(rx_defaults) + ARRAY_SIZE(rx_2_5_defaults);
 		reg_defaults = kmalloc_array(def_count, sizeof(struct reg_default), GFP_KERNEL);
-		if (!reg_defaults) {
-			ret = -ENOMEM;
-			goto err;
-		}
+		if (!reg_defaults)
+			return -ENOMEM;
 		memcpy(&reg_defaults[0], rx_defaults, sizeof(rx_defaults));
 		memcpy(&reg_defaults[ARRAY_SIZE(rx_defaults)],
 				rx_2_5_defaults, sizeof(rx_2_5_defaults));
 		break;
 	default:
 		dev_err(dev, "Unsupported Codec version (%d)\n", rx->codec_version);
-		ret = -EINVAL;
-		goto err;
+		return -EINVAL;
 	}
 
 	rx_regmap_config.reg_defaults = reg_defaults;
@@ -3927,8 +3925,6 @@ static int rx_macro_probe(struct platform_device *pdev)
 	clk_disable_unprepare(rx->macro);
 err_ver:
 	kfree(reg_defaults);
-err:
-	lpass_macro_pds_exit(rx->pds);
 
 	return ret;
 }
@@ -3942,8 +3938,6 @@ static void rx_macro_remove(struct platform_device *pdev)
 	clk_disable_unprepare(rx->fsgen);
 	clk_disable_unprepare(rx->macro);
 	clk_disable_unprepare(rx->dcodec);
-
-	lpass_macro_pds_exit(rx->pds);
 }
 
 static const struct of_device_id rx_macro_dt_match[] = {

-- 
2.43.0