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From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org>
Cc: Jerome Brunet <jbrunet@baylibre.com>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Kevin Hilman <khilman@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	alsa-devel@alsa-project.org,
	linux-arm-kernel@lists.infradead.org,
	linux-amlogic@lists.infradead.org, kernel@pengutronix.de
Subject: [PATCH 5/7] ASoC: meson: Make meson_card_remove() return void
Date: Sat, 14 Oct 2023 00:19:51 +0200	[thread overview]
Message-ID: <20231013221945.1489203-14-u.kleine-koenig@pengutronix.de> (raw)
In-Reply-To: <20231013221945.1489203-9-u.kleine-koenig@pengutronix.de>

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.

meson_card_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>
---
 sound/soc/meson/axg-card.c         | 2 +-
 sound/soc/meson/gx-card.c          | 2 +-
 sound/soc/meson/meson-card-utils.c | 4 +---
 sound/soc/meson/meson-card.h       | 2 +-
 4 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c
index 18b16274449e..3180aa4d3a15 100644
--- a/sound/soc/meson/axg-card.c
+++ b/sound/soc/meson/axg-card.c
@@ -360,7 +360,7 @@ MODULE_DEVICE_TABLE(of, axg_card_of_match);
 
 static struct platform_driver axg_card_pdrv = {
 	.probe = meson_card_probe,
-	.remove = meson_card_remove,
+	.remove_new = meson_card_remove,
 	.driver = {
 		.name = "axg-sound-card",
 		.of_match_table = axg_card_of_match,
diff --git a/sound/soc/meson/gx-card.c b/sound/soc/meson/gx-card.c
index 01beac1d927f..f1539e542638 100644
--- a/sound/soc/meson/gx-card.c
+++ b/sound/soc/meson/gx-card.c
@@ -130,7 +130,7 @@ MODULE_DEVICE_TABLE(of, gx_card_of_match);
 
 static struct platform_driver gx_card_pdrv = {
 	.probe = meson_card_probe,
-	.remove = meson_card_remove,
+	.remove_new = meson_card_remove,
 	.driver = {
 		.name = "gx-sound-card",
 		.of_match_table = gx_card_of_match,
diff --git a/sound/soc/meson/meson-card-utils.c b/sound/soc/meson/meson-card-utils.c
index c81099218597..ed6c7e2f609c 100644
--- a/sound/soc/meson/meson-card-utils.c
+++ b/sound/soc/meson/meson-card-utils.c
@@ -327,13 +327,11 @@ int meson_card_probe(struct platform_device *pdev)
 }
 EXPORT_SYMBOL_GPL(meson_card_probe);
 
-int meson_card_remove(struct platform_device *pdev)
+void meson_card_remove(struct platform_device *pdev)
 {
 	struct meson_card *priv = platform_get_drvdata(pdev);
 
 	meson_card_clean_references(priv);
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(meson_card_remove);
 
diff --git a/sound/soc/meson/meson-card.h b/sound/soc/meson/meson-card.h
index a5374324a189..a0d693e4f460 100644
--- a/sound/soc/meson/meson-card.h
+++ b/sound/soc/meson/meson-card.h
@@ -49,6 +49,6 @@ int meson_card_set_fe_link(struct snd_soc_card *card,
 			   bool is_playback);
 
 int meson_card_probe(struct platform_device *pdev);
-int meson_card_remove(struct platform_device *pdev);
+void meson_card_remove(struct platform_device *pdev);
 
 #endif /* _MESON_SND_CARD_H */
-- 
2.42.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org>
Cc: Jerome Brunet <jbrunet@baylibre.com>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Kevin Hilman <khilman@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	alsa-devel@alsa-project.org,
	linux-arm-kernel@lists.infradead.org,
	linux-amlogic@lists.infradead.org, kernel@pengutronix.de
Subject: [PATCH 5/7] ASoC: meson: Make meson_card_remove() return void
Date: Sat, 14 Oct 2023 00:19:51 +0200	[thread overview]
Message-ID: <20231013221945.1489203-14-u.kleine-koenig@pengutronix.de> (raw)
In-Reply-To: <20231013221945.1489203-9-u.kleine-koenig@pengutronix.de>

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.

meson_card_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>
---
 sound/soc/meson/axg-card.c         | 2 +-
 sound/soc/meson/gx-card.c          | 2 +-
 sound/soc/meson/meson-card-utils.c | 4 +---
 sound/soc/meson/meson-card.h       | 2 +-
 4 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c
index 18b16274449e..3180aa4d3a15 100644
--- a/sound/soc/meson/axg-card.c
+++ b/sound/soc/meson/axg-card.c
@@ -360,7 +360,7 @@ MODULE_DEVICE_TABLE(of, axg_card_of_match);
 
 static struct platform_driver axg_card_pdrv = {
 	.probe = meson_card_probe,
-	.remove = meson_card_remove,
+	.remove_new = meson_card_remove,
 	.driver = {
 		.name = "axg-sound-card",
 		.of_match_table = axg_card_of_match,
diff --git a/sound/soc/meson/gx-card.c b/sound/soc/meson/gx-card.c
index 01beac1d927f..f1539e542638 100644
--- a/sound/soc/meson/gx-card.c
+++ b/sound/soc/meson/gx-card.c
@@ -130,7 +130,7 @@ MODULE_DEVICE_TABLE(of, gx_card_of_match);
 
 static struct platform_driver gx_card_pdrv = {
 	.probe = meson_card_probe,
-	.remove = meson_card_remove,
+	.remove_new = meson_card_remove,
 	.driver = {
 		.name = "gx-sound-card",
 		.of_match_table = gx_card_of_match,
diff --git a/sound/soc/meson/meson-card-utils.c b/sound/soc/meson/meson-card-utils.c
index c81099218597..ed6c7e2f609c 100644
--- a/sound/soc/meson/meson-card-utils.c
+++ b/sound/soc/meson/meson-card-utils.c
@@ -327,13 +327,11 @@ int meson_card_probe(struct platform_device *pdev)
 }
 EXPORT_SYMBOL_GPL(meson_card_probe);
 
-int meson_card_remove(struct platform_device *pdev)
+void meson_card_remove(struct platform_device *pdev)
 {
 	struct meson_card *priv = platform_get_drvdata(pdev);
 
 	meson_card_clean_references(priv);
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(meson_card_remove);
 
diff --git a/sound/soc/meson/meson-card.h b/sound/soc/meson/meson-card.h
index a5374324a189..a0d693e4f460 100644
--- a/sound/soc/meson/meson-card.h
+++ b/sound/soc/meson/meson-card.h
@@ -49,6 +49,6 @@ int meson_card_set_fe_link(struct snd_soc_card *card,
 			   bool is_playback);
 
 int meson_card_probe(struct platform_device *pdev);
-int meson_card_remove(struct platform_device *pdev);
+void meson_card_remove(struct platform_device *pdev);
 
 #endif /* _MESON_SND_CARD_H */
-- 
2.42.0


_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic

WARNING: multiple messages have this Message-ID (diff)
From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org>
Cc: Jerome Brunet <jbrunet@baylibre.com>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Kevin Hilman <khilman@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	alsa-devel@alsa-project.org,
	linux-arm-kernel@lists.infradead.org,
	linux-amlogic@lists.infradead.org, kernel@pengutronix.de
Subject: [PATCH 5/7] ASoC: meson: Make meson_card_remove() return void
Date: Sat, 14 Oct 2023 00:19:51 +0200	[thread overview]
Message-ID: <20231013221945.1489203-14-u.kleine-koenig@pengutronix.de> (raw)
In-Reply-To: <20231013221945.1489203-9-u.kleine-koenig@pengutronix.de>

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.

meson_card_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>
---
 sound/soc/meson/axg-card.c         | 2 +-
 sound/soc/meson/gx-card.c          | 2 +-
 sound/soc/meson/meson-card-utils.c | 4 +---
 sound/soc/meson/meson-card.h       | 2 +-
 4 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c
index 18b16274449e..3180aa4d3a15 100644
--- a/sound/soc/meson/axg-card.c
+++ b/sound/soc/meson/axg-card.c
@@ -360,7 +360,7 @@ MODULE_DEVICE_TABLE(of, axg_card_of_match);
 
 static struct platform_driver axg_card_pdrv = {
 	.probe = meson_card_probe,
-	.remove = meson_card_remove,
+	.remove_new = meson_card_remove,
 	.driver = {
 		.name = "axg-sound-card",
 		.of_match_table = axg_card_of_match,
diff --git a/sound/soc/meson/gx-card.c b/sound/soc/meson/gx-card.c
index 01beac1d927f..f1539e542638 100644
--- a/sound/soc/meson/gx-card.c
+++ b/sound/soc/meson/gx-card.c
@@ -130,7 +130,7 @@ MODULE_DEVICE_TABLE(of, gx_card_of_match);
 
 static struct platform_driver gx_card_pdrv = {
 	.probe = meson_card_probe,
-	.remove = meson_card_remove,
+	.remove_new = meson_card_remove,
 	.driver = {
 		.name = "gx-sound-card",
 		.of_match_table = gx_card_of_match,
diff --git a/sound/soc/meson/meson-card-utils.c b/sound/soc/meson/meson-card-utils.c
index c81099218597..ed6c7e2f609c 100644
--- a/sound/soc/meson/meson-card-utils.c
+++ b/sound/soc/meson/meson-card-utils.c
@@ -327,13 +327,11 @@ int meson_card_probe(struct platform_device *pdev)
 }
 EXPORT_SYMBOL_GPL(meson_card_probe);
 
-int meson_card_remove(struct platform_device *pdev)
+void meson_card_remove(struct platform_device *pdev)
 {
 	struct meson_card *priv = platform_get_drvdata(pdev);
 
 	meson_card_clean_references(priv);
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(meson_card_remove);
 
diff --git a/sound/soc/meson/meson-card.h b/sound/soc/meson/meson-card.h
index a5374324a189..a0d693e4f460 100644
--- a/sound/soc/meson/meson-card.h
+++ b/sound/soc/meson/meson-card.h
@@ -49,6 +49,6 @@ int meson_card_set_fe_link(struct snd_soc_card *card,
 			   bool is_playback);
 
 int meson_card_probe(struct platform_device *pdev);
-int meson_card_remove(struct platform_device *pdev);
+void meson_card_remove(struct platform_device *pdev);
 
 #endif /* _MESON_SND_CARD_H */
-- 
2.42.0


  parent reply	other threads:[~2023-10-13 22:20 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-13 22:19 [PATCH 0/7] ASoc: Another series to convert to struct platform_driver:remove_new() Uwe Kleine-König
2023-10-13 22:19 ` Uwe Kleine-König
2023-10-13 22:19 ` Uwe Kleine-König
2023-10-13 22:19 ` Uwe Kleine-König
2023-10-13 22:19 ` [PATCH 1/7] ASoC: rockchip: i2s_tdm: Convert to platform remove callback returning void Uwe Kleine-König
2023-10-13 22:19   ` Uwe Kleine-König
2023-10-13 22:19   ` Uwe Kleine-König
2023-10-13 22:19 ` [PATCH 2/7] ASoC: cs42l43: " Uwe Kleine-König
2023-10-24  8:43   ` Charles Keepax
2023-10-13 22:19 ` [PATCH 3/7] ASoC: starfive/jh7110-pwmdac: " Uwe Kleine-König
2023-10-13 22:19 ` [PATCH 4/7] ASoC: simple-card-utils: Make simple_util_remove() return void Uwe Kleine-König
2023-10-14 12:23   ` Herve Codina
2023-10-13 22:19 ` Uwe Kleine-König [this message]
2023-10-13 22:19   ` [PATCH 5/7] ASoC: meson: Make meson_card_remove() " Uwe Kleine-König
2023-10-13 22:19   ` Uwe Kleine-König
2023-10-17 14:40   ` Jerome Brunet
2023-10-17 14:40     ` Jerome Brunet
2023-10-17 14:40     ` Jerome Brunet
2023-10-13 22:19 ` [PATCH 6/7] ASoC: qcom: lpass: Make asoc_qcom_lpass_cpu_platform_remove() " Uwe Kleine-König
2023-10-13 22:19 ` [PATCH 7/7] ASoC: uniphier: Make uniphier_aio_remove() " Uwe Kleine-König
2023-10-13 22:19   ` Uwe Kleine-König
2023-10-24 13:54 ` [PATCH 0/7] ASoc: Another series to convert to struct platform_driver:remove_new() Mark Brown
2023-10-24 13:54   ` Mark Brown
2023-10-24 13:54   ` Mark Brown
2023-10-24 13:54   ` Mark Brown

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