ASoC: qcom: lpass: Make asoc_qcom_lpass_cpu_platform_remove() return void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code.  However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

asoc_qcom_lpass_cpu_platform_remove() returned zero unconditionally.
Make it return void instead and convert all users to struct
platform_device::remove_new().

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231013221945.1489203-15-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: Uwe Kleine-König

sound/soc/qcom/lpass-apq8016.c

@@ -300,7 +300,7 @@ static struct platform_driver apq8016_lpass_cpu_platform_driver = {
 		.of_match_table	= of_match_ptr(apq8016_lpass_cpu_device_id),
 	},
 	.probe	= asoc_qcom_lpass_cpu_platform_probe,
-	.remove	= asoc_qcom_lpass_cpu_platform_remove,
+	.remove_new = asoc_qcom_lpass_cpu_platform_remove,
 };
 module_platform_driver(apq8016_lpass_cpu_platform_driver);
 

sound/soc/qcom/lpass-cpu.c

@@ -1274,15 +1274,12 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
 }
 EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_probe);
 
-int asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev)
+void asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev)
 {
 	struct lpass_data *drvdata = platform_get_drvdata(pdev);
 
 	if (drvdata->variant->exit)
 		drvdata->variant->exit(pdev);
-
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_remove);
 

sound/soc/qcom/lpass-ipq806x.c

@@ -172,7 +172,7 @@ static struct platform_driver ipq806x_lpass_cpu_platform_driver = {
 		.of_match_table	= of_match_ptr(ipq806x_lpass_cpu_device_id),
 	},
 	.probe	= asoc_qcom_lpass_cpu_platform_probe,
-	.remove	= asoc_qcom_lpass_cpu_platform_remove,
+	.remove_new = asoc_qcom_lpass_cpu_platform_remove,
 };
 module_platform_driver(ipq806x_lpass_cpu_platform_driver);
 

sound/soc/qcom/lpass-sc7180.c

@@ -315,7 +315,7 @@ static struct platform_driver sc7180_lpass_cpu_platform_driver = {
 		.pm = &sc7180_lpass_pm_ops,
 	},
 	.probe = asoc_qcom_lpass_cpu_platform_probe,
-	.remove = asoc_qcom_lpass_cpu_platform_remove,
+	.remove_new = asoc_qcom_lpass_cpu_platform_remove,
 	.shutdown = asoc_qcom_lpass_cpu_platform_shutdown,
 };
 

sound/soc/qcom/lpass-sc7280.c

@@ -445,7 +445,7 @@ static struct platform_driver sc7280_lpass_cpu_platform_driver = {
 		.pm = &sc7280_lpass_pm_ops,
 	},
 	.probe = asoc_qcom_lpass_cpu_platform_probe,
-	.remove = asoc_qcom_lpass_cpu_platform_remove,
+	.remove_new = asoc_qcom_lpass_cpu_platform_remove,
 	.shutdown = asoc_qcom_lpass_cpu_platform_shutdown,
 };
 

sound/soc/qcom/lpass.h

@@ -399,7 +399,7 @@ struct lpass_pcm_data {
 
 /* register the platform driver from the CPU DAI driver */
 int asoc_qcom_lpass_platform_register(struct platform_device *);
-int asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev);
+void asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev);
 void asoc_qcom_lpass_cpu_platform_shutdown(struct platform_device *pdev);
 int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev);
 extern const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops;