ASoC: codecs: lpass-rx-macro: Simplify with cleanup.h

Allocate the default register values array with scoped/cleanup.h to
reduce number of error paths and make code a bit simpler.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240701-b4-qcom-audio-lpass-codec-cleanups-v3-2-6d98d4dd1ef5@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/lpass-rx-macro.c

 // SPDX-License-Identifier: GPL-2.0-only
 // Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
 
+#include <linux/cleanup.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/io.h>
@@ -3764,7 +3765,6 @@ static const struct snd_soc_component_driver rx_macro_component_drv = {
 
 static int rx_macro_probe(struct platform_device *pdev)
 {
-	struct reg_default *reg_defaults;
 	struct device *dev = &pdev->dev;
 	kernel_ulong_t flags;
 	struct rx_macro *rx;
@@ -3812,6 +3812,8 @@ static int rx_macro_probe(struct platform_device *pdev)
 		return PTR_ERR(base);
 
 	rx->codec_version = lpass_macro_get_codec_version();
+	struct reg_default *reg_defaults __free(kfree) = NULL;
+
 	switch (rx->codec_version) {
 	case LPASS_CODEC_VERSION_1_0:
 	case LPASS_CODEC_VERSION_1_1:
@@ -3849,10 +3851,8 @@ static int rx_macro_probe(struct platform_device *pdev)
 	rx_regmap_config.num_reg_defaults = def_count;
 
 	rx->regmap = devm_regmap_init_mmio(dev, base, &rx_regmap_config);
-	if (IS_ERR(rx->regmap)) {
-		ret = PTR_ERR(rx->regmap);
-		goto err_ver;
-	}
+	if (IS_ERR(rx->regmap))
+		return PTR_ERR(rx->regmap);
 
 	dev_set_drvdata(dev, rx);
 
@@ -3864,7 +3864,7 @@ static int rx_macro_probe(struct platform_device *pdev)
 
 	ret = clk_prepare_enable(rx->macro);
 	if (ret)
-		goto err_ver;
+		return ret;
 
 	ret = clk_prepare_enable(rx->dcodec);
 	if (ret)
@@ -3910,7 +3910,6 @@ static int rx_macro_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_clkout;
 
-	kfree(reg_defaults);
 	return 0;
 
 err_clkout:
@@ -3923,8 +3922,6 @@ static int rx_macro_probe(struct platform_device *pdev)
 	clk_disable_unprepare(rx->dcodec);
 err_dcodec:
 	clk_disable_unprepare(rx->macro);
-err_ver:
-	kfree(reg_defaults);
 
 	return ret;
 }