linux-kernel - [PATCH 09/11] ASoC: ops: Simplify with cleanup.h

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Message-Id: <20240703-asoc-cleanup-h-v1-9-71219dfd0aef@linaro.org>
Date: Wed, 03 Jul 2024 14:11:03 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 Srinivas Kandagatla <srinivas.kandagatla@...aro.org>, 
 Banajit Goswami <bgoswami@...cinc.com>
Cc: linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org, 
 alsa-devel@...a-project.org, linux-arm-msm@...r.kernel.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 09/11] ASoC: ops: Simplify with cleanup.h

Allocate the memory with scoped/cleanup.h to reduce error handling (less
error paths) and make the code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 sound/soc/soc-ops.c | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index b27e89ff6a16..19928f098d8d 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -11,6 +11,7 @@
 //         with code, comments and ideas from :-
 //         Richard Purdie <richard@...nedhand.com>
 
+#include <linux/cleanup.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/init.h>
@@ -727,14 +728,14 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 	struct soc_bytes *params = (void *)kcontrol->private_value;
 	int ret, len;
 	unsigned int val, mask;
-	void *data;
 
 	if (!component->regmap || !params->num_regs)
 		return -EINVAL;
 
 	len = params->num_regs * component->val_bytes;
 
-	data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA);
+	void *data __free(kfree) = kmemdup(ucontrol->value.bytes.data, len,
+					   GFP_KERNEL | GFP_DMA);
 	if (!data)
 		return -ENOMEM;
 
@@ -746,7 +747,7 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 	if (params->mask) {
 		ret = regmap_read(component->regmap, params->base, &val);
 		if (ret != 0)
-			goto out;
+			return ret;
 
 		val &= params->mask;
 
@@ -760,14 +761,14 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 			ret = regmap_parse_val(component->regmap,
 							&mask, &mask);
 			if (ret != 0)
-				goto out;
+				return ret;
 
 			((u16 *)data)[0] &= mask;
 
 			ret = regmap_parse_val(component->regmap,
 							&val, &val);
 			if (ret != 0)
-				goto out;
+				return ret;
 
 			((u16 *)data)[0] |= val;
 			break;
@@ -776,30 +777,23 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 			ret = regmap_parse_val(component->regmap,
 							&mask, &mask);
 			if (ret != 0)
-				goto out;
+				return ret;
 
 			((u32 *)data)[0] &= mask;
 
 			ret = regmap_parse_val(component->regmap,
 							&val, &val);
 			if (ret != 0)
-				goto out;
+				return ret;
 
 			((u32 *)data)[0] |= val;
 			break;
 		default:
-			ret = -EINVAL;
-			goto out;
+			return -EINVAL;
 		}
 	}
 
-	ret = regmap_raw_write(component->regmap, params->base,
-			       data, len);
-
-out:
-	kfree(data);
-
-	return ret;
+	return regmap_raw_write(component->regmap, params->base, data, len);
 }
 EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
 

-- 
2.43.0