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>

6 files changed, 6 insertions, 9 deletions

diff --git a/sound/soc/qcom/lpass-apq8016.c b/sound/soc/qcom/lpass-apq8016.c
index 8ce75b442b64..8e58e814a95f 100644
--- a/sound/soc/qcom/lpass-apq8016.c
+++ b/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);
 
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index ba8fa7919884..88b80ed45c66 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -1274,15 +1274,12 @@ err:
 }
 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);
 
diff --git a/sound/soc/qcom/lpass-ipq806x.c b/sound/soc/qcom/lpass-ipq806x.c
index bbe9f11d7780..e0e9ad35821c 100644
--- a/sound/soc/qcom/lpass-ipq806x.c
+++ b/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);
 
diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c
index 1b0c04b210ce..22063b834554 100644
--- a/sound/soc/qcom/lpass-sc7180.c
+++ b/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,
 };
 
diff --git a/sound/soc/qcom/lpass-sc7280.c b/sound/soc/qcom/lpass-sc7280.c
index 7cd3e291382a..47c622327a8d 100644
--- a/sound/soc/qcom/lpass-sc7280.c
+++ b/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,
 };
 
diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
index aab60540563a..2f222bd4ffcc 100644
--- a/sound/soc/qcom/lpass.h
+++ b/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;