[PATCH v3 01/62] mmc: sunxi: Convert to platform remove callback returning void

[PATCH v3 01/62] mmc: sunxi: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
 drivers/mmc/host/sunxi-mmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 69dcb8805e05..d3bd0ac99ec4 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -1486,7 +1486,7 @@ static int sunxi_mmc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sunxi_mmc_remove(struct platform_device *pdev)
+static void sunxi_mmc_remove(struct platform_device *pdev)
 {
 	struct mmc_host	*mmc = platform_get_drvdata(pdev);
 	struct sunxi_mmc_host *host = mmc_priv(mmc);
@@ -1499,8 +1499,6 @@ static int sunxi_mmc_remove(struct platform_device *pdev)
 	}
 	dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
 	mmc_free_host(mmc);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
@@ -1556,7 +1554,7 @@ static struct platform_driver sunxi_mmc_driver = {
 		.pm = &sunxi_mmc_pm_ops,
 	},
 	.probe		= sunxi_mmc_probe,
-	.remove		= sunxi_mmc_remove,
+	.remove_new	= sunxi_mmc_remove,
 };
 module_platform_driver(sunxi_mmc_driver);
 
-- 
2.39.0

[PATCH v3 02/62] mmc: bcm2835: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
---
 drivers/mmc/host/bcm2835.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c
index eea208856ce0..35d8fdea668b 100644
--- a/drivers/mmc/host/bcm2835.c
+++ b/drivers/mmc/host/bcm2835.c
@@ -1431,7 +1431,7 @@ static int bcm2835_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int bcm2835_remove(struct platform_device *pdev)
+static void bcm2835_remove(struct platform_device *pdev)
 {
 	struct bcm2835_host *host = platform_get_drvdata(pdev);
 	struct mmc_host *mmc = mmc_from_priv(host);
@@ -1449,8 +1449,6 @@ static int bcm2835_remove(struct platform_device *pdev)
 		dma_release_channel(host->dma_chan_rxtx);
 
 	mmc_free_host(mmc);
-
-	return 0;
 }
 
 static const struct of_device_id bcm2835_match[] = {
@@ -1461,7 +1459,7 @@ MODULE_DEVICE_TABLE(of, bcm2835_match);
 
 static struct platform_driver bcm2835_driver = {
 	.probe      = bcm2835_probe,
-	.remove     = bcm2835_remove,
+	.remove_new = bcm2835_remove,
 	.driver     = {
 		.name		= "sdhost-bcm2835",
 		.probe_type	= PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 03/62] mmc: jz4740: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
---
 drivers/mmc/host/jz4740_mmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index 1846a05210e3..f379ce5b582d 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -1163,7 +1163,7 @@ static int jz4740_mmc_probe(struct platform_device* pdev)
 	return ret;
 }
 
-static int jz4740_mmc_remove(struct platform_device *pdev)
+static void jz4740_mmc_remove(struct platform_device *pdev)
 {
 	struct jz4740_mmc_host *host = platform_get_drvdata(pdev);
 
@@ -1179,8 +1179,6 @@ static int jz4740_mmc_remove(struct platform_device *pdev)
 		jz4740_mmc_release_dma_channels(host);
 
 	mmc_free_host(host->mmc);
-
-	return 0;
 }
 
 static int jz4740_mmc_suspend(struct device *dev)
@@ -1198,7 +1196,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(jz4740_mmc_pm_ops, jz4740_mmc_suspend,
 
 static struct platform_driver jz4740_mmc_driver = {
 	.probe = jz4740_mmc_probe,
-	.remove = jz4740_mmc_remove,
+	.remove_new = jz4740_mmc_remove,
 	.driver = {
 		.name = "jz4740-mmc",
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 04/62] mmc: litex_mmc: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/litex_mmc.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/litex_mmc.c b/drivers/mmc/host/litex_mmc.c
index 9af6b0902efe..4ec8072dc60b 100644
--- a/drivers/mmc/host/litex_mmc.c
+++ b/drivers/mmc/host/litex_mmc.c
@@ -629,12 +629,11 @@ static int litex_mmc_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int litex_mmc_remove(struct platform_device *pdev)
+static void litex_mmc_remove(struct platform_device *pdev)
 {
 	struct litex_mmc_host *host = platform_get_drvdata(pdev);
 
 	mmc_remove_host(host->mmc);
-	return 0;
 }
 
 static const struct of_device_id litex_match[] = {
@@ -645,7 +644,7 @@ MODULE_DEVICE_TABLE(of, litex_match);
 
 static struct platform_driver litex_mmc_driver = {
 	.probe = litex_mmc_probe,
-	.remove = litex_mmc_remove,
+	.remove_new = litex_mmc_remove,
 	.driver = {
 		.name = "litex-mmc",
 		.of_match_table = litex_match,
-- 
2.39.0

Re: [PATCH v3 04/62] mmc: litex_mmc: Convert to platform remove callback returning void

[Gabriel L. Somlo]

On Thu, Jul 27, 2023 at 02:59:53PM +0800, Yangtao Li wrote:
> 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.
> 
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
> 
> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Signed-off-by: Yangtao Li <frank.li@vivo.com>

Acked-by: Gabriel Somlo <gsomlo@gmail.com>

Thanks,
--Gabriel 

> ---
>  drivers/mmc/host/litex_mmc.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/mmc/host/litex_mmc.c b/drivers/mmc/host/litex_mmc.c
> index 9af6b0902efe..4ec8072dc60b 100644
> --- a/drivers/mmc/host/litex_mmc.c
> +++ b/drivers/mmc/host/litex_mmc.c
> @@ -629,12 +629,11 @@ static int litex_mmc_probe(struct platform_device *pdev)
>  	return 0;
>  }
>  
> -static int litex_mmc_remove(struct platform_device *pdev)
> +static void litex_mmc_remove(struct platform_device *pdev)
>  {
>  	struct litex_mmc_host *host = platform_get_drvdata(pdev);
>  
>  	mmc_remove_host(host->mmc);
> -	return 0;
>  }
>  
>  static const struct of_device_id litex_match[] = {
> @@ -645,7 +644,7 @@ MODULE_DEVICE_TABLE(of, litex_match);
>  
>  static struct platform_driver litex_mmc_driver = {
>  	.probe = litex_mmc_probe,
> -	.remove = litex_mmc_remove,
> +	.remove_new = litex_mmc_remove,
>  	.driver = {
>  		.name = "litex-mmc",
>  		.of_match_table = litex_match,
> -- 
> 2.39.0
> 

[PATCH v3 05/62] mmc: mtk-sd: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/mmc/host/mtk-sd.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 02403ff99e0d..9e2debd1edbe 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -2887,7 +2887,7 @@ static int msdc_drv_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int msdc_drv_remove(struct platform_device *pdev)
+static void msdc_drv_remove(struct platform_device *pdev)
 {
 	struct mmc_host *mmc;
 	struct msdc_host *host;
@@ -2911,8 +2911,6 @@ static int msdc_drv_remove(struct platform_device *pdev)
 			host->dma.bd, host->dma.bd_addr);
 
 	mmc_free_host(mmc);
-
-	return 0;
 }
 
 static void msdc_save_reg(struct msdc_host *host)
@@ -3054,7 +3052,7 @@ static const struct dev_pm_ops msdc_dev_pm_ops = {
 
 static struct platform_driver mt_msdc_driver = {
 	.probe = msdc_drv_probe,
-	.remove = msdc_drv_remove,
+	.remove_new = msdc_drv_remove,
 	.driver = {
 		.name = "mtk-msdc",
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 06/62] mmc: cb710: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/mmc/host/cb710-mmc.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/cb710-mmc.c b/drivers/mmc/host/cb710-mmc.c
index 6d623b2681c3..0aec33b88bef 100644
--- a/drivers/mmc/host/cb710-mmc.c
+++ b/drivers/mmc/host/cb710-mmc.c
@@ -745,7 +745,7 @@ static int cb710_mmc_init(struct platform_device *pdev)
 	return err;
 }
 
-static int cb710_mmc_exit(struct platform_device *pdev)
+static void cb710_mmc_exit(struct platform_device *pdev)
 {
 	struct cb710_slot *slot = cb710_pdev_to_slot(pdev);
 	struct mmc_host *mmc = cb710_slot_to_mmc(slot);
@@ -766,13 +766,12 @@ static int cb710_mmc_exit(struct platform_device *pdev)
 	tasklet_kill(&reader->finish_req_tasklet);
 
 	mmc_free_host(mmc);
-	return 0;
 }
 
 static struct platform_driver cb710_mmc_driver = {
 	.driver.name = "cb710-mmc",
 	.probe = cb710_mmc_init,
-	.remove = cb710_mmc_exit,
+	.remove_new = cb710_mmc_exit,
 #ifdef CONFIG_PM
 	.suspend = cb710_mmc_suspend,
 	.resume = cb710_mmc_resume,
-- 
2.39.0

[PATCH v3 07/62] mmc: davinci_mmc: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/davinci_mmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index fb686c0d171c..3757e4ebb614 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -1345,7 +1345,7 @@ static int davinci_mmcsd_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __exit davinci_mmcsd_remove(struct platform_device *pdev)
+static void __exit davinci_mmcsd_remove(struct platform_device *pdev)
 {
 	struct mmc_davinci_host *host = platform_get_drvdata(pdev);
 
@@ -1354,8 +1354,6 @@ static int __exit davinci_mmcsd_remove(struct platform_device *pdev)
 	davinci_release_dma_channels(host);
 	clk_disable_unprepare(host->clk);
 	mmc_free_host(host->mmc);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
@@ -1402,7 +1400,7 @@ static struct platform_driver davinci_mmcsd_driver = {
 		.of_match_table = davinci_mmc_dt_ids,
 	},
 	.probe		= davinci_mmcsd_probe,
-	.remove		= __exit_p(davinci_mmcsd_remove),
+	.remove_new	= __exit_p(davinci_mmcsd_remove),
 	.id_table	= davinci_mmc_devtype,
 };
 
-- 
2.39.0

[PATCH v3 08/62] mmc: dw_mmc: hi3798cv200: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/dw_mmc-hi3798cv200.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc-hi3798cv200.c b/drivers/mmc/host/dw_mmc-hi3798cv200.c
index 6f22fe054087..e9470c50a348 100644
--- a/drivers/mmc/host/dw_mmc-hi3798cv200.c
+++ b/drivers/mmc/host/dw_mmc-hi3798cv200.c
@@ -171,7 +171,7 @@ static int dw_mci_hi3798cv200_probe(struct platform_device *pdev)
 	return dw_mci_pltfm_register(pdev, &hi3798cv200_data);
 }
 
-static int dw_mci_hi3798cv200_remove(struct platform_device *pdev)
+static void dw_mci_hi3798cv200_remove(struct platform_device *pdev)
 {
 	struct dw_mci *host = platform_get_drvdata(pdev);
 	struct hi3798cv200_priv *priv = host->priv;
@@ -180,8 +180,6 @@ static int dw_mci_hi3798cv200_remove(struct platform_device *pdev)
 	clk_disable_unprepare(priv->sample_clk);
 
 	dw_mci_pltfm_remove(pdev);
-
-	return 0;
 }
 
 static const struct of_device_id dw_mci_hi3798cv200_match[] = {
@@ -192,7 +190,7 @@ static const struct of_device_id dw_mci_hi3798cv200_match[] = {
 MODULE_DEVICE_TABLE(of, dw_mci_hi3798cv200_match);
 static struct platform_driver dw_mci_hi3798cv200_driver = {
 	.probe = dw_mci_hi3798cv200_probe,
-	.remove = dw_mci_hi3798cv200_remove,
+	.remove_new = dw_mci_hi3798cv200_remove,
 	.driver = {
 		.name = "dwmmc_hi3798cv200",
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 09/62] mmc: sdhci-pic32: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-pic32.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-pic32.c b/drivers/mmc/host/sdhci-pic32.c
index 6696b6bdd88e..7a0351a9c74e 100644
--- a/drivers/mmc/host/sdhci-pic32.c
+++ b/drivers/mmc/host/sdhci-pic32.c
@@ -210,7 +210,7 @@ static int pic32_sdhci_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int pic32_sdhci_remove(struct platform_device *pdev)
+static void pic32_sdhci_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct pic32_sdhci_priv *sdhci_pdata = sdhci_priv(host);
@@ -221,8 +221,6 @@ static int pic32_sdhci_remove(struct platform_device *pdev)
 	clk_disable_unprepare(sdhci_pdata->base_clk);
 	clk_disable_unprepare(sdhci_pdata->sys_clk);
 	sdhci_pltfm_free(pdev);
-
-	return 0;
 }
 
 static const struct of_device_id pic32_sdhci_id_table[] = {
@@ -238,7 +236,7 @@ static struct platform_driver pic32_sdhci_driver = {
 		.of_match_table = of_match_ptr(pic32_sdhci_id_table),
 	},
 	.probe		= pic32_sdhci_probe,
-	.remove		= pic32_sdhci_remove,
+	.remove_new	= pic32_sdhci_remove,
 };
 
 module_platform_driver(pic32_sdhci_driver);
-- 
2.39.0

[PATCH v3 10/62] mmc: sdhci: milbeaut: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-milbeaut.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-milbeaut.c b/drivers/mmc/host/sdhci-milbeaut.c
index 148b37ac6564..ee4514c90eea 100644
--- a/drivers/mmc/host/sdhci-milbeaut.c
+++ b/drivers/mmc/host/sdhci-milbeaut.c
@@ -313,7 +313,7 @@ static int sdhci_milbeaut_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_milbeaut_remove(struct platform_device *pdev)
+static void sdhci_milbeaut_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct f_sdhost_priv *priv = sdhci_priv(host);
@@ -326,8 +326,6 @@ static int sdhci_milbeaut_remove(struct platform_device *pdev)
 
 	sdhci_free_host(host);
 	platform_set_drvdata(pdev, NULL);
-
-	return 0;
 }
 
 static struct platform_driver sdhci_milbeaut_driver = {
@@ -337,7 +335,7 @@ static struct platform_driver sdhci_milbeaut_driver = {
 		.of_match_table = of_match_ptr(mlb_dt_ids),
 	},
 	.probe	= sdhci_milbeaut_probe,
-	.remove	= sdhci_milbeaut_remove,
+	.remove_new = sdhci_milbeaut_remove,
 };
 
 module_platform_driver(sdhci_milbeaut_driver);
-- 
2.39.0

[PATCH v3 11/62] mmc: omap_hsmmc: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/omap_hsmmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 93de00a06aba..e120aeb869b8 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1979,7 +1979,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int omap_hsmmc_remove(struct platform_device *pdev)
+static void omap_hsmmc_remove(struct platform_device *pdev)
 {
 	struct omap_hsmmc_host *host = platform_get_drvdata(pdev);
 
@@ -1997,8 +1997,6 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
 	clk_disable_unprepare(host->dbclk);
 
 	mmc_free_host(host->mmc);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -2123,7 +2121,7 @@ static const struct dev_pm_ops omap_hsmmc_dev_pm_ops = {
 
 static struct platform_driver omap_hsmmc_driver = {
 	.probe		= omap_hsmmc_probe,
-	.remove		= omap_hsmmc_remove,
+	.remove_new	= omap_hsmmc_remove,
 	.driver		= {
 		.name = DRIVER_NAME,
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 12/62] mmc: sdhci-of-at91: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
---
 drivers/mmc/host/sdhci-of-at91.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
index cd0134580a90..af5bc0caf29b 100644
--- a/drivers/mmc/host/sdhci-of-at91.c
+++ b/drivers/mmc/host/sdhci-of-at91.c
@@ -443,7 +443,7 @@ static int sdhci_at91_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_at91_remove(struct platform_device *pdev)
+static void sdhci_at91_remove(struct platform_device *pdev)
 {
 	struct sdhci_host	*host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host	*pltfm_host = sdhci_priv(host);
@@ -461,8 +461,6 @@ static int sdhci_at91_remove(struct platform_device *pdev)
 	clk_disable_unprepare(gck);
 	clk_disable_unprepare(hclock);
 	clk_disable_unprepare(mainck);
-
-	return 0;
 }
 
 static struct platform_driver sdhci_at91_driver = {
@@ -473,7 +471,7 @@ static struct platform_driver sdhci_at91_driver = {
 		.pm	= &sdhci_at91_dev_pm_ops,
 	},
 	.probe		= sdhci_at91_probe,
-	.remove		= sdhci_at91_remove,
+	.remove_new	= sdhci_at91_remove,
 };
 
 module_platform_driver(sdhci_at91_driver);
-- 
2.39.0

[PATCH v3 13/62] mmc: omap: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/omap.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 6a259563690d..9fb8995b43a1 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -1506,7 +1506,7 @@ static int mmc_omap_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int mmc_omap_remove(struct platform_device *pdev)
+static void mmc_omap_remove(struct platform_device *pdev)
 {
 	struct mmc_omap_host *host = platform_get_drvdata(pdev);
 	int i;
@@ -1532,8 +1532,6 @@ static int mmc_omap_remove(struct platform_device *pdev)
 		dma_release_channel(host->dma_rx);
 
 	destroy_workqueue(host->mmc_omap_wq);
-
-	return 0;
 }
 
 #if IS_BUILTIN(CONFIG_OF)
@@ -1546,7 +1544,7 @@ MODULE_DEVICE_TABLE(of, mmc_omap_match);
 
 static struct platform_driver mmc_omap_driver = {
 	.probe		= mmc_omap_probe,
-	.remove		= mmc_omap_remove,
+	.remove_new	= mmc_omap_remove,
 	.driver		= {
 		.name	= DRIVER_NAME,
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 14/62] mmc: dw_mmc: exynos: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/dw_mmc-exynos.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 9f20ac524c8b..698408e8bad0 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -664,15 +664,13 @@ static int dw_mci_exynos_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int dw_mci_exynos_remove(struct platform_device *pdev)
+static void dw_mci_exynos_remove(struct platform_device *pdev)
 {
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
 
 	dw_mci_pltfm_remove(pdev);
-
-	return 0;
 }
 
 static const struct dev_pm_ops dw_mci_exynos_pmops = {
@@ -685,7 +683,7 @@ static const struct dev_pm_ops dw_mci_exynos_pmops = {
 
 static struct platform_driver dw_mci_exynos_pltfm_driver = {
 	.probe		= dw_mci_exynos_probe,
-	.remove		= dw_mci_exynos_remove,
+	.remove_new	= dw_mci_exynos_remove,
 	.driver		= {
 		.name		= "dwmmc_exynos",
 		.probe_type	= PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 15/62] mmc: sdhci-pxav3: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-pxav3.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index e39dcc998772..3af43ac05825 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -470,7 +470,7 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_pxav3_remove(struct platform_device *pdev)
+static void sdhci_pxav3_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -486,8 +486,6 @@ static int sdhci_pxav3_remove(struct platform_device *pdev)
 	clk_disable_unprepare(pxa->clk_core);
 
 	sdhci_pltfm_free(pdev);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -570,7 +568,7 @@ static struct platform_driver sdhci_pxav3_driver = {
 		.pm	= &sdhci_pxav3_pmops,
 	},
 	.probe		= sdhci_pxav3_probe,
-	.remove		= sdhci_pxav3_remove,
+	.remove_new	= sdhci_pxav3_remove,
 };
 
 module_platform_driver(sdhci_pxav3_driver);
-- 
2.39.0

[PATCH v3 16/62] mmc: rtsx_pci: Drop if block with always false condition

[Yangtao Li]

rtsx_pci_sdmmc_drv_remove() is only called for a device after
rtsx_pci_sdmmc_drv_probe() returned 0. In that case platform_set_drvdata()
was called with a non-NULL value and so platform_get_drvdata()
won't return NULL.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/mmc/host/rtsx_pci_sdmmc.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index 8098726dcc0b..062d07c2ae5e 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -1529,9 +1529,6 @@ static int rtsx_pci_sdmmc_drv_remove(struct platform_device *pdev)
 	struct rtsx_pcr *pcr;
 	struct mmc_host *mmc;
 
-	if (!host)
-		return 0;
-
 	pcr = host->pcr;
 	pcr->slots[RTSX_SD_CARD].p_dev = NULL;
 	pcr->slots[RTSX_SD_CARD].card_event = NULL;
-- 
2.39.0

[PATCH v3 17/62] mmc: rtsx_pci: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/rtsx_pci_sdmmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index 062d07c2ae5e..87d78432a1e0 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -1523,7 +1523,7 @@ static int rtsx_pci_sdmmc_drv_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int rtsx_pci_sdmmc_drv_remove(struct platform_device *pdev)
+static void rtsx_pci_sdmmc_drv_remove(struct platform_device *pdev)
 {
 	struct realtek_pci_sdmmc *host = platform_get_drvdata(pdev);
 	struct rtsx_pcr *pcr;
@@ -1563,8 +1563,6 @@ static int rtsx_pci_sdmmc_drv_remove(struct platform_device *pdev)
 
 	dev_dbg(&(pdev->dev),
 		": Realtek PCI-E SDMMC controller has been removed\n");
-
-	return 0;
 }
 
 static const struct platform_device_id rtsx_pci_sdmmc_ids[] = {
@@ -1578,7 +1576,7 @@ MODULE_DEVICE_TABLE(platform, rtsx_pci_sdmmc_ids);
 
 static struct platform_driver rtsx_pci_sdmmc_driver = {
 	.probe		= rtsx_pci_sdmmc_drv_probe,
-	.remove		= rtsx_pci_sdmmc_drv_remove,
+	.remove_new	= rtsx_pci_sdmmc_drv_remove,
 	.id_table       = rtsx_pci_sdmmc_ids,
 	.driver		= {
 		.name	= DRV_NAME_RTSX_PCI_SDMMC,
-- 
2.39.0

[PATCH v3 18/62] mmc: sh_mmcif: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/sh_mmcif.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 5cf53348372a..1066e0c2831b 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -1509,7 +1509,7 @@ static int sh_mmcif_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sh_mmcif_remove(struct platform_device *pdev)
+static void sh_mmcif_remove(struct platform_device *pdev)
 {
 	struct sh_mmcif_host *host = platform_get_drvdata(pdev);
 
@@ -1533,8 +1533,6 @@ static int sh_mmcif_remove(struct platform_device *pdev)
 	mmc_free_host(host->mmc);
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -1561,7 +1559,7 @@ static const struct dev_pm_ops sh_mmcif_dev_pm_ops = {
 
 static struct platform_driver sh_mmcif_driver = {
 	.probe		= sh_mmcif_probe,
-	.remove		= sh_mmcif_remove,
+	.remove_new	= sh_mmcif_remove,
 	.driver		= {
 		.name	= DRIVER_NAME,
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 19/62] mmc: meson-gx: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/meson-gx-mmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index d652374f37b2..a2601d0ece71 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -1294,7 +1294,7 @@ static int meson_mmc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int meson_mmc_remove(struct platform_device *pdev)
+static void meson_mmc_remove(struct platform_device *pdev)
 {
 	struct meson_host *host = dev_get_drvdata(&pdev->dev);
 
@@ -1305,8 +1305,6 @@ static int meson_mmc_remove(struct platform_device *pdev)
 	free_irq(host->irq, host);
 
 	clk_disable_unprepare(host->mmc_clk);
-
-	return 0;
 }
 
 static const struct meson_mmc_data meson_gx_data = {
@@ -1337,7 +1335,7 @@ MODULE_DEVICE_TABLE(of, meson_mmc_of_match);
 
 static struct platform_driver meson_mmc_driver = {
 	.probe		= meson_mmc_probe,
-	.remove		= meson_mmc_remove,
+	.remove_new	= meson_mmc_remove,
 	.driver		= {
 		.name = DRIVER_NAME,
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

Re: [PATCH v3 19/62] mmc: meson-gx: Convert to platform remove callback returning void

[Martin Blumenstingl]

On Thu, Jul 27, 2023 at 9:01 AM Yangtao Li <frank.li@vivo.com> wrote:
>
> 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.
>
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
>
> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[PATCH v3 20/62] mmc: xenon: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-xenon.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-xenon.c b/drivers/mmc/host/sdhci-xenon.c
index 08e838400b52..25ba7aecc3be 100644
--- a/drivers/mmc/host/sdhci-xenon.c
+++ b/drivers/mmc/host/sdhci-xenon.c
@@ -578,7 +578,7 @@ static int xenon_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int xenon_remove(struct platform_device *pdev)
+static void xenon_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -595,8 +595,6 @@ static int xenon_remove(struct platform_device *pdev)
 	clk_disable_unprepare(pltfm_host->clk);
 
 	sdhci_pltfm_free(pdev);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -705,7 +703,7 @@ static struct platform_driver sdhci_xenon_driver = {
 		.pm = &sdhci_xenon_dev_pm_ops,
 	},
 	.probe	= xenon_probe,
-	.remove	= xenon_remove,
+	.remove_new = xenon_remove,
 };
 
 module_platform_driver(sdhci_xenon_driver);
-- 
2.39.0

[PATCH v3 21/62] mmc: sdhci-s3c: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
---
 drivers/mmc/host/sdhci-s3c.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 504015e84308..b61f12d328e0 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -668,7 +668,7 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_s3c_remove(struct platform_device *pdev)
+static void sdhci_s3c_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host =  platform_get_drvdata(pdev);
 	struct sdhci_s3c *sc = sdhci_priv(host);
@@ -688,8 +688,6 @@ static int sdhci_s3c_remove(struct platform_device *pdev)
 	clk_disable_unprepare(sc->clk_io);
 
 	sdhci_free_host(host);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -776,7 +774,7 @@ MODULE_DEVICE_TABLE(of, sdhci_s3c_dt_match);
 
 static struct platform_driver sdhci_s3c_driver = {
 	.probe		= sdhci_s3c_probe,
-	.remove		= sdhci_s3c_remove,
+	.remove_new	= sdhci_s3c_remove,
 	.id_table	= sdhci_s3c_driver_ids,
 	.driver		= {
 		.name	= "s3c-sdhci",
-- 
2.39.0

[PATCH v3 22/62] mmc: meson-mx-sdhc: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/meson-mx-sdhc-mmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/meson-mx-sdhc-mmc.c b/drivers/mmc/host/meson-mx-sdhc-mmc.c
index 97168cdfa8e9..528ec8166e7c 100644
--- a/drivers/mmc/host/meson-mx-sdhc-mmc.c
+++ b/drivers/mmc/host/meson-mx-sdhc-mmc.c
@@ -880,7 +880,7 @@ static int meson_mx_sdhc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int meson_mx_sdhc_remove(struct platform_device *pdev)
+static void meson_mx_sdhc_remove(struct platform_device *pdev)
 {
 	struct meson_mx_sdhc_host *host = platform_get_drvdata(pdev);
 
@@ -889,8 +889,6 @@ static int meson_mx_sdhc_remove(struct platform_device *pdev)
 	meson_mx_sdhc_disable_clks(host->mmc);
 
 	clk_disable_unprepare(host->pclk);
-
-	return 0;
 }
 
 static const struct meson_mx_sdhc_data meson_mx_sdhc_data_meson8 = {
@@ -925,7 +923,7 @@ MODULE_DEVICE_TABLE(of, meson_mx_sdhc_of_match);
 
 static struct platform_driver meson_mx_sdhc_driver = {
 	.probe   = meson_mx_sdhc_probe,
-	.remove  = meson_mx_sdhc_remove,
+	.remove_new = meson_mx_sdhc_remove,
 	.driver  = {
 		.name = "meson-mx-sdhc",
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

Re: [PATCH v3 22/62] mmc: meson-mx-sdhc: Convert to platform remove callback returning void

[Martin Blumenstingl]

On Thu, Jul 27, 2023 at 9:01 AM Yangtao Li <frank.li@vivo.com> wrote:
>
> 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.
>
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
>
> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[PATCH v3 23/62] mmc: rtsx_usb_sdmmc: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/rtsx_usb_sdmmc.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c
index 2c650cd58693..ded9b6849e35 100644
--- a/drivers/mmc/host/rtsx_usb_sdmmc.c
+++ b/drivers/mmc/host/rtsx_usb_sdmmc.c
@@ -1379,13 +1379,13 @@ static int rtsx_usb_sdmmc_drv_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int rtsx_usb_sdmmc_drv_remove(struct platform_device *pdev)
+static void rtsx_usb_sdmmc_drv_remove(struct platform_device *pdev)
 {
 	struct rtsx_usb_sdmmc *host = platform_get_drvdata(pdev);
 	struct mmc_host *mmc;
 
 	if (!host)
-		return 0;
+		return;
 
 	mmc = host->mmc;
 	host->host_removal = true;
@@ -1415,8 +1415,6 @@ static int rtsx_usb_sdmmc_drv_remove(struct platform_device *pdev)
 
 	dev_dbg(&(pdev->dev),
 		": Realtek USB SD/MMC module has been removed\n");
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
@@ -1455,7 +1453,7 @@ MODULE_DEVICE_TABLE(platform, rtsx_usb_sdmmc_ids);
 
 static struct platform_driver rtsx_usb_sdmmc_driver = {
 	.probe		= rtsx_usb_sdmmc_drv_probe,
-	.remove		= rtsx_usb_sdmmc_drv_remove,
+	.remove_new	= rtsx_usb_sdmmc_drv_remove,
 	.id_table       = rtsx_usb_sdmmc_ids,
 	.driver		= {
 		.name	= "rtsx_usb_sdmmc",
-- 
2.39.0

[PATCH v3 24/62] mmc: mxs-mmc: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/mxs-mmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 8c3655d3be96..9abfb169464b 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -674,7 +674,7 @@ static int mxs_mmc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int mxs_mmc_remove(struct platform_device *pdev)
+static void mxs_mmc_remove(struct platform_device *pdev)
 {
 	struct mmc_host *mmc = platform_get_drvdata(pdev);
 	struct mxs_mmc_host *host = mmc_priv(mmc);
@@ -688,8 +688,6 @@ static int mxs_mmc_remove(struct platform_device *pdev)
 	clk_disable_unprepare(ssp->clk);
 
 	mmc_free_host(mmc);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -717,7 +715,7 @@ static SIMPLE_DEV_PM_OPS(mxs_mmc_pm_ops, mxs_mmc_suspend, mxs_mmc_resume);
 
 static struct platform_driver mxs_mmc_driver = {
 	.probe		= mxs_mmc_probe,
-	.remove		= mxs_mmc_remove,
+	.remove_new	= mxs_mmc_remove,
 	.driver		= {
 		.name	= DRIVER_NAME,
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 25/62] mmc: sdhci-of-arasan: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Michal Simek <michal.simek@amd.com>
---
 drivers/mmc/host/sdhci-of-arasan.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index 294dd605fd2b..160bab0c437c 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -2016,7 +2016,7 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_arasan_remove(struct platform_device *pdev)
+static void sdhci_arasan_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -2034,8 +2034,6 @@ static int sdhci_arasan_remove(struct platform_device *pdev)
 	sdhci_pltfm_unregister(pdev);
 
 	clk_disable_unprepare(clk_ahb);
-
-	return 0;
 }
 
 static struct platform_driver sdhci_arasan_driver = {
@@ -2046,7 +2044,7 @@ static struct platform_driver sdhci_arasan_driver = {
 		.pm = &sdhci_arasan_dev_pm_ops,
 	},
 	.probe = sdhci_arasan_probe,
-	.remove = sdhci_arasan_remove,
+	.remove_new = sdhci_arasan_remove,
 };
 
 module_platform_driver(sdhci_arasan_driver);
-- 
2.39.0

[PATCH v3 26/62] mmc: sdhci-of-dwcmshc: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-of-dwcmshc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-dwcmshc.c b/drivers/mmc/host/sdhci-of-dwcmshc.c
index e68cd87998c8..5cfd24cd33fc 100644
--- a/drivers/mmc/host/sdhci-of-dwcmshc.c
+++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
@@ -574,7 +574,7 @@ static int dwcmshc_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int dwcmshc_remove(struct platform_device *pdev)
+static void dwcmshc_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -589,8 +589,6 @@ static int dwcmshc_remove(struct platform_device *pdev)
 		clk_bulk_disable_unprepare(RK35xx_MAX_CLKS,
 					   rk_priv->rockchip_clks);
 	sdhci_pltfm_free(pdev);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -657,7 +655,7 @@ static struct platform_driver sdhci_dwcmshc_driver = {
 		.pm = &dwcmshc_pmops,
 	},
 	.probe	= dwcmshc_probe,
-	.remove	= dwcmshc_remove,
+	.remove_new = dwcmshc_remove,
 };
 module_platform_driver(sdhci_dwcmshc_driver);
 
-- 
2.39.0

[PATCH v3 27/62] mmc: au1xmmc: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/au1xmmc.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index 82dd0ae40305..b5a5c6a2fe8b 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -1114,7 +1114,7 @@ static int au1xmmc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int au1xmmc_remove(struct platform_device *pdev)
+static void au1xmmc_remove(struct platform_device *pdev)
 {
 	struct au1xmmc_host *host = platform_get_drvdata(pdev);
 
@@ -1153,7 +1153,6 @@ static int au1xmmc_remove(struct platform_device *pdev)
 
 		mmc_free_host(host->mmc);
 	}
-	return 0;
 }
 
 #ifdef CONFIG_PM
@@ -1185,7 +1184,7 @@ static int au1xmmc_resume(struct platform_device *pdev)
 
 static struct platform_driver au1xmmc_driver = {
 	.probe         = au1xmmc_probe,
-	.remove        = au1xmmc_remove,
+	.remove_new    = au1xmmc_remove,
 	.suspend       = au1xmmc_suspend,
 	.resume        = au1xmmc_resume,
 	.driver        = {
-- 
2.39.0

[PATCH v3 28/62] mmc: cavium-octeon: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/cavium-octeon.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/cavium-octeon.c b/drivers/mmc/host/cavium-octeon.c
index 12dca91a8ef6..d526868b30f6 100644
--- a/drivers/mmc/host/cavium-octeon.c
+++ b/drivers/mmc/host/cavium-octeon.c
@@ -294,7 +294,7 @@ static int octeon_mmc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int octeon_mmc_remove(struct platform_device *pdev)
+static void octeon_mmc_remove(struct platform_device *pdev)
 {
 	struct cvm_mmc_host *host = platform_get_drvdata(pdev);
 	u64 dma_cfg;
@@ -309,7 +309,6 @@ static int octeon_mmc_remove(struct platform_device *pdev)
 	writeq(dma_cfg, host->dma_base + MIO_EMM_DMA_CFG(host));
 
 	octeon_mmc_set_shared_power(host, 0);
-	return 0;
 }
 
 static const struct of_device_id octeon_mmc_match[] = {
@@ -325,7 +324,7 @@ MODULE_DEVICE_TABLE(of, octeon_mmc_match);
 
 static struct platform_driver octeon_mmc_driver = {
 	.probe		= octeon_mmc_probe,
-	.remove		= octeon_mmc_remove,
+	.remove_new	= octeon_mmc_remove,
 	.driver		= {
 		.name	= KBUILD_MODNAME,
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 29/62] mmc: pxamci: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/pxamci.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index 1142cd2368f6..e44c8ff6b303 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -783,7 +783,7 @@ static int pxamci_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int pxamci_remove(struct platform_device *pdev)
+static void pxamci_remove(struct platform_device *pdev)
 {
 	struct mmc_host *mmc = platform_get_drvdata(pdev);
 
@@ -807,13 +807,11 @@ static int pxamci_remove(struct platform_device *pdev)
 
 		mmc_free_host(mmc);
 	}
-
-	return 0;
 }
 
 static struct platform_driver pxamci_driver = {
 	.probe		= pxamci_probe,
-	.remove		= pxamci_remove,
+	.remove_new	= pxamci_remove,
 	.driver		= {
 		.name	= DRIVER_NAME,
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 30/62] mmc: moxart: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/moxart-mmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/moxart-mmc.c b/drivers/mmc/host/moxart-mmc.c
index d0d6ffcf78d4..6673b95747cd 100644
--- a/drivers/mmc/host/moxart-mmc.c
+++ b/drivers/mmc/host/moxart-mmc.c
@@ -687,7 +687,7 @@ static int moxart_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int moxart_remove(struct platform_device *pdev)
+static void moxart_remove(struct platform_device *pdev)
 {
 	struct mmc_host *mmc = dev_get_drvdata(&pdev->dev);
 	struct moxart_host *host = mmc_priv(mmc);
@@ -705,8 +705,6 @@ static int moxart_remove(struct platform_device *pdev)
 	writel(readl(host->base + REG_CLOCK_CONTROL) | CLK_OFF,
 	       host->base + REG_CLOCK_CONTROL);
 	mmc_free_host(mmc);
-
-	return 0;
 }
 
 static const struct of_device_id moxart_mmc_match[] = {
@@ -718,7 +716,7 @@ MODULE_DEVICE_TABLE(of, moxart_mmc_match);
 
 static struct platform_driver moxart_mmc_driver = {
 	.probe      = moxart_probe,
-	.remove     = moxart_remove,
+	.remove_new = moxart_remove,
 	.driver     = {
 		.name		= "mmc-moxart",
 		.probe_type	= PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 31/62] mmc: sdhci-omap: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-omap.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c
index 8ed9256b83da..6aa77eb4a3fb 100644
--- a/drivers/mmc/host/sdhci-omap.c
+++ b/drivers/mmc/host/sdhci-omap.c
@@ -1394,7 +1394,7 @@ static int sdhci_omap_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_omap_remove(struct platform_device *pdev)
+static void sdhci_omap_remove(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct sdhci_host *host = platform_get_drvdata(pdev);
@@ -1408,8 +1408,6 @@ static int sdhci_omap_remove(struct platform_device *pdev)
 	/* Ensure device gets disabled despite userspace sysfs config */
 	pm_runtime_force_suspend(dev);
 	sdhci_pltfm_free(pdev);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
@@ -1478,7 +1476,7 @@ static const struct dev_pm_ops sdhci_omap_dev_pm_ops = {
 
 static struct platform_driver sdhci_omap_driver = {
 	.probe = sdhci_omap_probe,
-	.remove = sdhci_omap_remove,
+	.remove_new = sdhci_omap_remove,
 	.driver = {
 		   .name = "sdhci-omap",
 		   .probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 32/62] mmc: sdhci-of-aspeed: remove unneeded variables

[Yangtao Li]

The variable 'dead' is redundant, let's remove it.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/mmc/host/sdhci-of-aspeed.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-aspeed.c b/drivers/mmc/host/sdhci-of-aspeed.c
index 25b4073f698b..b4867bb4a564 100644
--- a/drivers/mmc/host/sdhci-of-aspeed.c
+++ b/drivers/mmc/host/sdhci-of-aspeed.c
@@ -454,12 +454,11 @@ static int aspeed_sdhci_remove(struct platform_device *pdev)
 {
 	struct sdhci_pltfm_host *pltfm_host;
 	struct sdhci_host *host;
-	int dead = 0;
 
 	host = platform_get_drvdata(pdev);
 	pltfm_host = sdhci_priv(host);
 
-	sdhci_remove_host(host, dead);
+	sdhci_remove_host(host, 0);
 
 	clk_disable_unprepare(pltfm_host->clk);
 
-- 
2.39.0

[PATCH v3 33/62] mmc: sdhci-of-aspeed: Convert to platform remove

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-of-aspeed.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-aspeed.c b/drivers/mmc/host/sdhci-of-aspeed.c
index b4867bb4a564..42d54532cabe 100644
--- a/drivers/mmc/host/sdhci-of-aspeed.c
+++ b/drivers/mmc/host/sdhci-of-aspeed.c
@@ -450,7 +450,7 @@ static int aspeed_sdhci_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int aspeed_sdhci_remove(struct platform_device *pdev)
+static void aspeed_sdhci_remove(struct platform_device *pdev)
 {
 	struct sdhci_pltfm_host *pltfm_host;
 	struct sdhci_host *host;
@@ -463,8 +463,6 @@ static int aspeed_sdhci_remove(struct platform_device *pdev)
 	clk_disable_unprepare(pltfm_host->clk);
 
 	sdhci_pltfm_free(pdev);
-
-	return 0;
 }
 
 static const struct aspeed_sdhci_pdata ast2400_sdhci_pdata = {
@@ -520,7 +518,7 @@ static struct platform_driver aspeed_sdhci_driver = {
 		.of_match_table = aspeed_sdhci_of_match,
 	},
 	.probe		= aspeed_sdhci_probe,
-	.remove		= aspeed_sdhci_remove,
+	.remove_new	= aspeed_sdhci_remove,
 };
 
 static int aspeed_sdc_probe(struct platform_device *pdev)
@@ -573,13 +571,11 @@ static int aspeed_sdc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int aspeed_sdc_remove(struct platform_device *pdev)
+static void aspeed_sdc_remove(struct platform_device *pdev)
 {
 	struct aspeed_sdc *sdc = dev_get_drvdata(&pdev->dev);
 
 	clk_disable_unprepare(sdc->clk);
-
-	return 0;
 }
 
 static const struct of_device_id aspeed_sdc_of_match[] = {
@@ -599,7 +595,7 @@ static struct platform_driver aspeed_sdc_driver = {
 		.of_match_table = aspeed_sdc_of_match,
 	},
 	.probe		= aspeed_sdc_probe,
-	.remove		= aspeed_sdc_remove,
+	.remove_new	= aspeed_sdc_remove,
 };
 
 #if defined(CONFIG_MMC_SDHCI_OF_ASPEED_TEST)
-- 
2.39.0

[PATCH v3 34/62] mmc: meson-mx-sdio: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/meson-mx-sdio.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/meson-mx-sdio.c b/drivers/mmc/host/meson-mx-sdio.c
index 3a19a05ef55a..a11577f2ee69 100644
--- a/drivers/mmc/host/meson-mx-sdio.c
+++ b/drivers/mmc/host/meson-mx-sdio.c
@@ -728,7 +728,7 @@ static int meson_mx_mmc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int meson_mx_mmc_remove(struct platform_device *pdev)
+static void meson_mx_mmc_remove(struct platform_device *pdev)
 {
 	struct meson_mx_mmc_host *host = platform_get_drvdata(pdev);
 	struct device *slot_dev = mmc_dev(host->mmc);
@@ -743,8 +743,6 @@ static int meson_mx_mmc_remove(struct platform_device *pdev)
 	clk_disable_unprepare(host->core_clk);
 
 	mmc_free_host(host->mmc);
-
-	return 0;
 }
 
 static const struct of_device_id meson_mx_mmc_of_match[] = {
@@ -756,7 +754,7 @@ MODULE_DEVICE_TABLE(of, meson_mx_mmc_of_match);
 
 static struct platform_driver meson_mx_mmc_driver = {
 	.probe   = meson_mx_mmc_probe,
-	.remove  = meson_mx_mmc_remove,
+	.remove_new = meson_mx_mmc_remove,
 	.driver  = {
 		.name = "meson-mx-sdio",
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

Re: [PATCH v3 34/62] mmc: meson-mx-sdio: Convert to platform remove callback returning void

[Martin Blumenstingl]

On Thu, Jul 27, 2023 at 9:02 AM Yangtao Li <frank.li@vivo.com> wrote:
>
> 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.
>
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
>
> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[PATCH v3 35/62] mmc: sdhci-sprd: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Chunyan Zhang <zhang.lyra@gmail.com>
---
 drivers/mmc/host/sdhci-sprd.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c
index 7f4ee2e12735..379cb3892757 100644
--- a/drivers/mmc/host/sdhci-sprd.c
+++ b/drivers/mmc/host/sdhci-sprd.c
@@ -720,7 +720,7 @@ static int sdhci_sprd_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_sprd_remove(struct platform_device *pdev)
+static void sdhci_sprd_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_sprd_host *sprd_host = TO_SPRD_HOST(host);
@@ -732,8 +732,6 @@ static int sdhci_sprd_remove(struct platform_device *pdev)
 	clk_disable_unprepare(sprd_host->clk_2x_enable);
 
 	sdhci_pltfm_free(pdev);
-
-	return 0;
 }
 
 static const struct of_device_id sdhci_sprd_of_match[] = {
@@ -800,7 +798,7 @@ static const struct dev_pm_ops sdhci_sprd_pm_ops = {
 
 static struct platform_driver sdhci_sprd_driver = {
 	.probe = sdhci_sprd_probe,
-	.remove = sdhci_sprd_remove,
+	.remove_new = sdhci_sprd_remove,
 	.driver = {
 		.name = "sdhci_sprd_r11",
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 36/62] mmc: sdhci-tegra: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-tegra.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index bff084f178c9..6a50413afc8d 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -1818,7 +1818,7 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
 	return rc;
 }
 
-static int sdhci_tegra_remove(struct platform_device *pdev)
+static void sdhci_tegra_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -1834,8 +1834,6 @@ static int sdhci_tegra_remove(struct platform_device *pdev)
 
 	clk_disable_unprepare(tegra_host->tmclk);
 	sdhci_pltfm_free(pdev);
-
-	return 0;
 }
 
 static int __maybe_unused sdhci_tegra_runtime_suspend(struct device *dev)
@@ -1933,7 +1931,7 @@ static struct platform_driver sdhci_tegra_driver = {
 		.pm	= &sdhci_tegra_dev_pm_ops,
 	},
 	.probe		= sdhci_tegra_probe,
-	.remove		= sdhci_tegra_remove,
+	.remove_new	= sdhci_tegra_remove,
 };
 
 module_platform_driver(sdhci_tegra_driver);
-- 
2.39.0

[PATCH v3 37/62] mmc: sdhci-acpi: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-acpi.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index edf2e6c14dc6..acf5fc3ad7e4 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -917,7 +917,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int sdhci_acpi_remove(struct platform_device *pdev)
+static void sdhci_acpi_remove(struct platform_device *pdev)
 {
 	struct sdhci_acpi_host *c = platform_get_drvdata(pdev);
 	struct device *dev = &pdev->dev;
@@ -939,8 +939,6 @@ static int sdhci_acpi_remove(struct platform_device *pdev)
 		c->slot->free_slot(pdev);
 
 	sdhci_free_host(c->host);
-
-	return 0;
 }
 
 static void __maybe_unused sdhci_acpi_reset_signal_voltage_if_needed(
@@ -1033,7 +1031,7 @@ static struct platform_driver sdhci_acpi_driver = {
 		.pm			= &sdhci_acpi_pm_ops,
 	},
 	.probe	= sdhci_acpi_probe,
-	.remove	= sdhci_acpi_remove,
+	.remove_new = sdhci_acpi_remove,
 };
 
 module_platform_driver(sdhci_acpi_driver);
-- 
2.39.0

[PATCH v3 38/62] mmc: sdhci-esdhc-imx: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index eebf94604a7f..e882067366da 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1802,7 +1802,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int sdhci_esdhc_imx_remove(struct platform_device *pdev)
+static void sdhci_esdhc_imx_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -1824,8 +1824,6 @@ static int sdhci_esdhc_imx_remove(struct platform_device *pdev)
 		cpu_latency_qos_remove_request(&imx_data->pm_qos_req);
 
 	sdhci_pltfm_free(pdev);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -1986,7 +1984,7 @@ static struct platform_driver sdhci_esdhc_imx_driver = {
 		.pm	= &sdhci_esdhc_pmops,
 	},
 	.probe		= sdhci_esdhc_imx_probe,
-	.remove		= sdhci_esdhc_imx_remove,
+	.remove_new	= sdhci_esdhc_imx_remove,
 };
 
 module_platform_driver(sdhci_esdhc_imx_driver);
-- 
2.39.0

[PATCH v3 39/62] mmc: sdhci-msm: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-msm.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 1c935b5bafe1..80e376802ee0 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -2668,7 +2668,7 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_msm_remove(struct platform_device *pdev)
+static void sdhci_msm_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -2687,7 +2687,6 @@ static int sdhci_msm_remove(struct platform_device *pdev)
 	if (!IS_ERR(msm_host->bus_clk))
 		clk_disable_unprepare(msm_host->bus_clk);
 	sdhci_pltfm_free(pdev);
-	return 0;
 }
 
 static __maybe_unused int sdhci_msm_runtime_suspend(struct device *dev)
@@ -2740,7 +2739,7 @@ static const struct dev_pm_ops sdhci_msm_pm_ops = {
 
 static struct platform_driver sdhci_msm_driver = {
 	.probe = sdhci_msm_probe,
-	.remove = sdhci_msm_remove,
+	.remove_new = sdhci_msm_remove,
 	.driver = {
 		   .name = "sdhci_msm",
 		   .of_match_table = sdhci_msm_dt_match,
-- 
2.39.0

[PATCH v3 40/62] mmc: alcor: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/alcor.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/alcor.c b/drivers/mmc/host/alcor.c
index d01df01d4b4d..42aa43740ba8 100644
--- a/drivers/mmc/host/alcor.c
+++ b/drivers/mmc/host/alcor.c
@@ -1125,7 +1125,7 @@ static int alcor_pci_sdmmc_drv_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int alcor_pci_sdmmc_drv_remove(struct platform_device *pdev)
+static void alcor_pci_sdmmc_drv_remove(struct platform_device *pdev)
 {
 	struct alcor_sdmmc_host *host = dev_get_drvdata(&pdev->dev);
 	struct mmc_host *mmc = mmc_from_priv(host);
@@ -1136,8 +1136,6 @@ static int alcor_pci_sdmmc_drv_remove(struct platform_device *pdev)
 	alcor_hw_uninit(host);
 	mmc_remove_host(mmc);
 	mmc_free_host(mmc);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -1177,7 +1175,7 @@ MODULE_DEVICE_TABLE(platform, alcor_pci_sdmmc_ids);
 
 static struct platform_driver alcor_pci_sdmmc_driver = {
 	.probe		= alcor_pci_sdmmc_drv_probe,
-	.remove		= alcor_pci_sdmmc_drv_remove,
+	.remove_new	= alcor_pci_sdmmc_drv_remove,
 	.id_table	= alcor_pci_sdmmc_ids,
 	.driver		= {
 		.name	= DRV_NAME_ALCOR_PCI_SDMMC,
-- 
2.39.0

[PATCH v3 41/62] mmc: dw_mmc: rockchip: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/dw_mmc-rockchip.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc-rockchip.c b/drivers/mmc/host/dw_mmc-rockchip.c
index 2a99f15f527f..b07190ba4b7a 100644
--- a/drivers/mmc/host/dw_mmc-rockchip.c
+++ b/drivers/mmc/host/dw_mmc-rockchip.c
@@ -371,15 +371,13 @@ static int dw_mci_rockchip_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int dw_mci_rockchip_remove(struct platform_device *pdev)
+static void dw_mci_rockchip_remove(struct platform_device *pdev)
 {
 	pm_runtime_get_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
 
 	dw_mci_pltfm_remove(pdev);
-
-	return 0;
 }
 
 static const struct dev_pm_ops dw_mci_rockchip_dev_pm_ops = {
@@ -392,7 +390,7 @@ static const struct dev_pm_ops dw_mci_rockchip_dev_pm_ops = {
 
 static struct platform_driver dw_mci_rockchip_pltfm_driver = {
 	.probe		= dw_mci_rockchip_probe,
-	.remove		= dw_mci_rockchip_remove,
+	.remove_new	= dw_mci_rockchip_remove,
 	.driver		= {
 		.name		= "dwmmc_rockchip",
 		.probe_type	= PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

Re: [PATCH v3 41/62] mmc: dw_mmc: rockchip: Convert to platform remove callback returning void

[Heiko Stuebner]

Am Donnerstag, 27. Juli 2023, 09:00:30 CEST schrieb Yangtao Li:
> 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.
> 
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
> 
> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Signed-off-by: Yangtao Li <frank.li@vivo.com>

Acked-by: Heiko Stuebner <heiko@sntech.de>

[PATCH v3 42/62] mmc: owl: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/owl-mmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/owl-mmc.c b/drivers/mmc/host/owl-mmc.c
index 1bf22b08b373..a13bec42554a 100644
--- a/drivers/mmc/host/owl-mmc.c
+++ b/drivers/mmc/host/owl-mmc.c
@@ -667,7 +667,7 @@ static int owl_mmc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int owl_mmc_remove(struct platform_device *pdev)
+static void owl_mmc_remove(struct platform_device *pdev)
 {
 	struct mmc_host	*mmc = platform_get_drvdata(pdev);
 	struct owl_mmc_host *owl_host = mmc_priv(mmc);
@@ -676,8 +676,6 @@ static int owl_mmc_remove(struct platform_device *pdev)
 	disable_irq(owl_host->irq);
 	dma_release_channel(owl_host->dma);
 	mmc_free_host(mmc);
-
-	return 0;
 }
 
 static const struct of_device_id owl_mmc_of_match[] = {
@@ -693,7 +691,7 @@ static struct platform_driver owl_mmc_driver = {
 		.of_match_table = owl_mmc_of_match,
 	},
 	.probe		= owl_mmc_probe,
-	.remove		= owl_mmc_remove,
+	.remove_new	= owl_mmc_remove,
 };
 module_platform_driver(owl_mmc_driver);
 
-- 
2.39.0

[PATCH v3 43/62] mmc: wbsd: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/wbsd.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index 521af9251f33..f361cefcee01 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -1758,11 +1758,9 @@ static int wbsd_probe(struct platform_device *dev)
 	return wbsd_init(&dev->dev, param_io, param_irq, param_dma, 0);
 }
 
-static int wbsd_remove(struct platform_device *dev)
+static void wbsd_remove(struct platform_device *dev)
 {
 	wbsd_shutdown(&dev->dev, 0);
-
-	return 0;
 }
 
 /*
@@ -1904,8 +1902,7 @@ static struct platform_device *wbsd_device;
 
 static struct platform_driver wbsd_driver = {
 	.probe		= wbsd_probe,
-	.remove		= wbsd_remove,
-
+	.remove_new	= wbsd_remove,
 	.suspend	= wbsd_platform_suspend,
 	.resume		= wbsd_platform_resume,
 	.driver		= {
-- 
2.39.0

[PATCH v3 44/62] mmc: usdhi60rol0: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
---
 drivers/mmc/host/usdhi6rol0.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/usdhi6rol0.c b/drivers/mmc/host/usdhi6rol0.c
index 2e17903658fc..6e421445d56c 100644
--- a/drivers/mmc/host/usdhi6rol0.c
+++ b/drivers/mmc/host/usdhi6rol0.c
@@ -1884,7 +1884,7 @@ static int usdhi6_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int usdhi6_remove(struct platform_device *pdev)
+static void usdhi6_remove(struct platform_device *pdev)
 {
 	struct usdhi6_host *host = platform_get_drvdata(pdev);
 
@@ -1895,13 +1895,11 @@ static int usdhi6_remove(struct platform_device *pdev)
 	usdhi6_dma_release(host);
 	clk_disable_unprepare(host->clk);
 	mmc_free_host(host->mmc);
-
-	return 0;
 }
 
 static struct platform_driver usdhi6_driver = {
 	.probe		= usdhi6_probe,
-	.remove		= usdhi6_remove,
+	.remove_new	= usdhi6_remove,
 	.driver		= {
 		.name	= "usdhi6rol0",
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 45/62] mmc: atmel-mci: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
---
 drivers/mmc/host/atmel-mci.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index dd18440a90c5..b4ae9aa939a5 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -2600,7 +2600,7 @@ static int atmci_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int atmci_remove(struct platform_device *pdev)
+static void atmci_remove(struct platform_device *pdev)
 {
 	struct atmel_mci	*host = platform_get_drvdata(pdev);
 	unsigned int		i;
@@ -2630,8 +2630,6 @@ static int atmci_remove(struct platform_device *pdev)
 
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
@@ -2664,7 +2662,7 @@ static const struct dev_pm_ops atmci_dev_pm_ops = {
 
 static struct platform_driver atmci_driver = {
 	.probe		= atmci_probe,
-	.remove		= atmci_remove,
+	.remove_new	= atmci_remove,
 	.driver		= {
 		.name		= "atmel_mci",
 		.probe_type	= PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 46/62] mmc: sdhci-st: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-st.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-st.c b/drivers/mmc/host/sdhci-st.c
index 6415916fbd91..d955b5f4b7e9 100644
--- a/drivers/mmc/host/sdhci-st.c
+++ b/drivers/mmc/host/sdhci-st.c
@@ -434,7 +434,7 @@ static int sdhci_st_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_st_remove(struct platform_device *pdev)
+static void sdhci_st_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -446,8 +446,6 @@ static int sdhci_st_remove(struct platform_device *pdev)
 	clk_disable_unprepare(pdata->icnclk);
 
 	reset_control_assert(rstc);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -510,7 +508,7 @@ MODULE_DEVICE_TABLE(of, st_sdhci_match);
 
 static struct platform_driver sdhci_st_driver = {
 	.probe = sdhci_st_probe,
-	.remove = sdhci_st_remove,
+	.remove_new = sdhci_st_remove,
 	.driver = {
 		   .name = "sdhci-st",
 		   .probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

Re: [PATCH v3 46/62] mmc: sdhci-st: Convert to platform remove callback returning void

[Patrice CHOTARD]

On 7/27/23 09:00, Yangtao Li wrote:
> 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.
> 
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
> 
> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Signed-off-by: Yangtao Li <frank.li@vivo.com>
> Acked-by: Adrian Hunter <adrian.hunter@intel.com>
> ---
>  drivers/mmc/host/sdhci-st.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci-st.c b/drivers/mmc/host/sdhci-st.c
> index 6415916fbd91..d955b5f4b7e9 100644
> --- a/drivers/mmc/host/sdhci-st.c
> +++ b/drivers/mmc/host/sdhci-st.c
> @@ -434,7 +434,7 @@ static int sdhci_st_probe(struct platform_device *pdev)
>  	return ret;
>  }
>  
> -static int sdhci_st_remove(struct platform_device *pdev)
> +static void sdhci_st_remove(struct platform_device *pdev)
>  {
>  	struct sdhci_host *host = platform_get_drvdata(pdev);
>  	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> @@ -446,8 +446,6 @@ static int sdhci_st_remove(struct platform_device *pdev)
>  	clk_disable_unprepare(pdata->icnclk);
>  
>  	reset_control_assert(rstc);
> -
> -	return 0;
>  }
>  
>  #ifdef CONFIG_PM_SLEEP
> @@ -510,7 +508,7 @@ MODULE_DEVICE_TABLE(of, st_sdhci_match);
>  
>  static struct platform_driver sdhci_st_driver = {
>  	.probe = sdhci_st_probe,
> -	.remove = sdhci_st_remove,
> +	.remove_new = sdhci_st_remove,
>  	.driver = {
>  		   .name = "sdhci-st",
>  		   .probe_type = PROBE_PREFER_ASYNCHRONOUS,
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

Thanks
Patrice

[PATCH v3 47/62] mmc: wmt-sdmmc: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/wmt-sdmmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c
index 68525d900046..74c475d071b7 100644
--- a/drivers/mmc/host/wmt-sdmmc.c
+++ b/drivers/mmc/host/wmt-sdmmc.c
@@ -880,7 +880,7 @@ static int wmt_mci_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int wmt_mci_remove(struct platform_device *pdev)
+static void wmt_mci_remove(struct platform_device *pdev)
 {
 	struct mmc_host *mmc;
 	struct wmt_mci_priv *priv;
@@ -918,8 +918,6 @@ static int wmt_mci_remove(struct platform_device *pdev)
 	mmc_free_host(mmc);
 
 	dev_info(&pdev->dev, "WMT MCI device removed\n");
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
@@ -989,7 +987,7 @@ static const struct dev_pm_ops wmt_mci_pm = {
 
 static struct platform_driver wmt_mci_driver = {
 	.probe = wmt_mci_probe,
-	.remove = wmt_mci_remove,
+	.remove_new = wmt_mci_remove,
 	.driver = {
 		.name = DRIVER_NAME,
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 48/62] mmc: sdhci-esdhc-mcf: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Angelo Dureghello <angelo.dureghello@timesys.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-esdhc-mcf.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-mcf.c b/drivers/mmc/host/sdhci-esdhc-mcf.c
index 05926bf5ecf9..a07f8333cd6b 100644
--- a/drivers/mmc/host/sdhci-esdhc-mcf.c
+++ b/drivers/mmc/host/sdhci-esdhc-mcf.c
@@ -489,7 +489,7 @@ static int sdhci_esdhc_mcf_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int sdhci_esdhc_mcf_remove(struct platform_device *pdev)
+static void sdhci_esdhc_mcf_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -502,8 +502,6 @@ static int sdhci_esdhc_mcf_remove(struct platform_device *pdev)
 	clk_disable_unprepare(mcf_data->clk_per);
 
 	sdhci_pltfm_free(pdev);
-
-	return 0;
 }
 
 static struct platform_driver sdhci_esdhc_mcf_driver = {
@@ -512,7 +510,7 @@ static struct platform_driver sdhci_esdhc_mcf_driver = {
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 	.probe = sdhci_esdhc_mcf_probe,
-	.remove = sdhci_esdhc_mcf_remove,
+	.remove_new = sdhci_esdhc_mcf_remove,
 };
 
 module_platform_driver(sdhci_esdhc_mcf_driver);
-- 
2.39.0

[PATCH v3 49/62] mmc: sunplus-mmc: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/sunplus-mmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sunplus-mmc.c b/drivers/mmc/host/sunplus-mmc.c
index a55a87f64d2a..2f30a683a17f 100644
--- a/drivers/mmc/host/sunplus-mmc.c
+++ b/drivers/mmc/host/sunplus-mmc.c
@@ -946,7 +946,7 @@ static int spmmc_drv_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int spmmc_drv_remove(struct platform_device *dev)
+static void spmmc_drv_remove(struct platform_device *dev)
 {
 	struct spmmc_host *host = platform_get_drvdata(dev);
 
@@ -957,8 +957,6 @@ static int spmmc_drv_remove(struct platform_device *dev)
 	pm_runtime_disable(&dev->dev);
 	platform_set_drvdata(dev, NULL);
 	mmc_free_host(host->mmc);
-
-	return 0;
 }
 
 static int spmmc_pm_runtime_suspend(struct device *dev)
@@ -993,7 +991,7 @@ MODULE_DEVICE_TABLE(of, spmmc_of_table);
 
 static struct platform_driver spmmc_driver = {
 	.probe = spmmc_drv_probe,
-	.remove = spmmc_drv_remove,
+	.remove_new = spmmc_drv_remove,
 	.driver = {
 		.name = "spmmc",
 		.pm = pm_ptr(&spmmc_pm_ops),
-- 
2.39.0

[PATCH v3 50/62] mmc: sdhci-spear: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-spear.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index c79035727b20..ec6c7d8e3736 100644
--- a/drivers/mmc/host/sdhci-spear.c
+++ b/drivers/mmc/host/sdhci-spear.c
@@ -117,7 +117,7 @@ static int sdhci_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_remove(struct platform_device *pdev)
+static void sdhci_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct spear_sdhci *sdhci = sdhci_priv(host);
@@ -131,8 +131,6 @@ static int sdhci_remove(struct platform_device *pdev)
 	sdhci_remove_host(host, dead);
 	clk_disable_unprepare(sdhci->clk);
 	sdhci_free_host(host);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -186,7 +184,7 @@ static struct platform_driver sdhci_driver = {
 		.of_match_table = of_match_ptr(sdhci_spear_id_table),
 	},
 	.probe		= sdhci_probe,
-	.remove		= sdhci_remove,
+	.remove_new	= sdhci_remove,
 };
 
 module_platform_driver(sdhci_driver);
-- 
2.39.0

[PATCH v3 51/62] mmc: mxcmmc: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/mxcmmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index f3a72569dd1a..133127e45b81 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -1163,7 +1163,7 @@ static int mxcmci_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int mxcmci_remove(struct platform_device *pdev)
+static void mxcmci_remove(struct platform_device *pdev)
 {
 	struct mmc_host *mmc = platform_get_drvdata(pdev);
 	struct mxcmci_host *host = mmc_priv(mmc);
@@ -1180,8 +1180,6 @@ static int mxcmci_remove(struct platform_device *pdev)
 	clk_disable_unprepare(host->clk_ipg);
 
 	mmc_free_host(mmc);
-
-	return 0;
 }
 
 static int mxcmci_suspend(struct device *dev)
@@ -1215,7 +1213,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(mxcmci_pm_ops, mxcmci_suspend, mxcmci_resume);
 
 static struct platform_driver mxcmci_driver = {
 	.probe		= mxcmci_probe,
-	.remove		= mxcmci_remove,
+	.remove_new	= mxcmci_remove,
 	.driver		= {
 		.name		= DRIVER_NAME,
 		.probe_type	= PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 52/62] mmc: mvsdio: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/mvsdio.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index b4f6a0a2fcb5..ca01b7d204ba 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -796,7 +796,7 @@ static int mvsd_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int mvsd_remove(struct platform_device *pdev)
+static void mvsd_remove(struct platform_device *pdev)
 {
 	struct mmc_host *mmc = platform_get_drvdata(pdev);
 
@@ -809,8 +809,6 @@ static int mvsd_remove(struct platform_device *pdev)
 	if (!IS_ERR(host->clk))
 		clk_disable_unprepare(host->clk);
 	mmc_free_host(mmc);
-
-	return 0;
 }
 
 static const struct of_device_id mvsdio_dt_ids[] = {
@@ -821,7 +819,7 @@ MODULE_DEVICE_TABLE(of, mvsdio_dt_ids);
 
 static struct platform_driver mvsd_driver = {
 	.probe		= mvsd_probe,
-	.remove		= mvsd_remove,
+	.remove_new	= mvsd_remove,
 	.driver		= {
 		.name	= DRIVER_NAME,
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 53/62] mmc: pwrseq_simple: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/core/pwrseq_simple.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/core/pwrseq_simple.c b/drivers/mmc/core/pwrseq_simple.c
index 3bac1e71411b..df9588503ad0 100644
--- a/drivers/mmc/core/pwrseq_simple.c
+++ b/drivers/mmc/core/pwrseq_simple.c
@@ -142,18 +142,16 @@ static int mmc_pwrseq_simple_probe(struct platform_device *pdev)
 	return mmc_pwrseq_register(&pwrseq->pwrseq);
 }
 
-static int mmc_pwrseq_simple_remove(struct platform_device *pdev)
+static void mmc_pwrseq_simple_remove(struct platform_device *pdev)
 {
 	struct mmc_pwrseq_simple *pwrseq = platform_get_drvdata(pdev);
 
 	mmc_pwrseq_unregister(&pwrseq->pwrseq);
-
-	return 0;
 }
 
 static struct platform_driver mmc_pwrseq_simple_driver = {
 	.probe = mmc_pwrseq_simple_probe,
-	.remove = mmc_pwrseq_simple_remove,
+	.remove_new = mmc_pwrseq_simple_remove,
 	.driver = {
 		.name = "pwrseq_simple",
 		.of_match_table = mmc_pwrseq_simple_of_match,
-- 
2.39.0

[PATCH v3 54/62] mmc: pwrseq: sd8787: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/core/pwrseq_sd8787.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/core/pwrseq_sd8787.c b/drivers/mmc/core/pwrseq_sd8787.c
index 0c5f5e371e1f..0c5808fc3206 100644
--- a/drivers/mmc/core/pwrseq_sd8787.c
+++ b/drivers/mmc/core/pwrseq_sd8787.c
@@ -113,18 +113,16 @@ static int mmc_pwrseq_sd8787_probe(struct platform_device *pdev)
 	return mmc_pwrseq_register(&pwrseq->pwrseq);
 }
 
-static int mmc_pwrseq_sd8787_remove(struct platform_device *pdev)
+static void mmc_pwrseq_sd8787_remove(struct platform_device *pdev)
 {
 	struct mmc_pwrseq_sd8787 *pwrseq = platform_get_drvdata(pdev);
 
 	mmc_pwrseq_unregister(&pwrseq->pwrseq);
-
-	return 0;
 }
 
 static struct platform_driver mmc_pwrseq_sd8787_driver = {
 	.probe = mmc_pwrseq_sd8787_probe,
-	.remove = mmc_pwrseq_sd8787_remove,
+	.remove_new = mmc_pwrseq_sd8787_remove,
 	.driver = {
 		.name = "pwrseq_sd8787",
 		.of_match_table = mmc_pwrseq_sd8787_of_match,
-- 
2.39.0

[PATCH v3 55/62] mmc: pwrseq: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/core/pwrseq_emmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/core/pwrseq_emmc.c b/drivers/mmc/core/pwrseq_emmc.c
index f6dde9edd7a3..3b6d69cefb4e 100644
--- a/drivers/mmc/core/pwrseq_emmc.c
+++ b/drivers/mmc/core/pwrseq_emmc.c
@@ -90,14 +90,12 @@ static int mmc_pwrseq_emmc_probe(struct platform_device *pdev)
 	return mmc_pwrseq_register(&pwrseq->pwrseq);
 }
 
-static int mmc_pwrseq_emmc_remove(struct platform_device *pdev)
+static void mmc_pwrseq_emmc_remove(struct platform_device *pdev)
 {
 	struct mmc_pwrseq_emmc *pwrseq = platform_get_drvdata(pdev);
 
 	unregister_restart_handler(&pwrseq->reset_nb);
 	mmc_pwrseq_unregister(&pwrseq->pwrseq);
-
-	return 0;
 }
 
 static const struct of_device_id mmc_pwrseq_emmc_of_match[] = {
@@ -109,7 +107,7 @@ MODULE_DEVICE_TABLE(of, mmc_pwrseq_emmc_of_match);
 
 static struct platform_driver mmc_pwrseq_emmc_driver = {
 	.probe = mmc_pwrseq_emmc_probe,
-	.remove = mmc_pwrseq_emmc_remove,
+	.remove_new = mmc_pwrseq_emmc_remove,
 	.driver = {
 		.name = "pwrseq_emmc",
 		.of_match_table = mmc_pwrseq_emmc_of_match,
-- 
2.39.0

[PATCH v3 56/62] mmc: renesas_sdhi: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/mmc/host/renesas_sdhi.h               | 2 +-
 drivers/mmc/host/renesas_sdhi_core.c          | 4 +---
 drivers/mmc/host/renesas_sdhi_internal_dmac.c | 2 +-
 drivers/mmc/host/renesas_sdhi_sys_dmac.c      | 2 +-
 4 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/mmc/host/renesas_sdhi.h b/drivers/mmc/host/renesas_sdhi.h
index 68da3da9e2e5..c1fb9740eab0 100644
--- a/drivers/mmc/host/renesas_sdhi.h
+++ b/drivers/mmc/host/renesas_sdhi.h
@@ -101,5 +101,5 @@ int renesas_sdhi_probe(struct platform_device *pdev,
 		       const struct tmio_mmc_dma_ops *dma_ops,
 		       const struct renesas_sdhi_of_data *of_data,
 		       const struct renesas_sdhi_quirks *quirks);
-int renesas_sdhi_remove(struct platform_device *pdev);
+void renesas_sdhi_remove(struct platform_device *pdev);
 #endif
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index 10dbdb4abc93..c675dec587ef 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -1149,15 +1149,13 @@ int renesas_sdhi_probe(struct platform_device *pdev,
 }
 EXPORT_SYMBOL_GPL(renesas_sdhi_probe);
 
-int renesas_sdhi_remove(struct platform_device *pdev)
+void renesas_sdhi_remove(struct platform_device *pdev)
 {
 	struct tmio_mmc_host *host = platform_get_drvdata(pdev);
 
 	tmio_mmc_host_remove(host);
 	renesas_sdhi_clk_disable(host);
 	tmio_mmc_host_free(host);
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(renesas_sdhi_remove);
 
diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
index 9ab813903b2c..d8efb8035b1f 100644
--- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
@@ -609,7 +609,7 @@ static struct platform_driver renesas_internal_dmac_sdhi_driver = {
 		.of_match_table = renesas_sdhi_internal_dmac_of_match,
 	},
 	.probe		= renesas_sdhi_internal_dmac_probe,
-	.remove		= renesas_sdhi_remove,
+	.remove_new	= renesas_sdhi_remove,
 };
 
 module_platform_driver(renesas_internal_dmac_sdhi_driver);
diff --git a/drivers/mmc/host/renesas_sdhi_sys_dmac.c b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
index b559ad38b667..248dfeef942a 100644
--- a/drivers/mmc/host/renesas_sdhi_sys_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
@@ -470,7 +470,7 @@ static struct platform_driver renesas_sys_dmac_sdhi_driver = {
 		.of_match_table = renesas_sdhi_sys_dmac_of_match,
 	},
 	.probe		= renesas_sdhi_sys_dmac_probe,
-	.remove		= renesas_sdhi_remove,
+	.remove_new	= renesas_sdhi_remove,
 };
 
 module_platform_driver(renesas_sys_dmac_sdhi_driver);
-- 
2.39.0

Re: [PATCH v3 56/62] mmc: renesas_sdhi: Convert to platform remove callback returning void

[Wolfram Sang]

[-- Attachment #1: Type: text/plain, Size: 983 bytes --]

On Thu, Jul 27, 2023 at 03:00:45PM +0800, Yangtao Li wrote:
> 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.
> 
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
> 
> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Signed-off-by: Yangtao Li <frank.li@vivo.com>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Builds fine, boots fine, rebind works:

Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>


[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

[PATCH v3 57/62] mmc: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com> # Broadcom
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-bcm-kona.c  | 2 +-
 drivers/mmc/host/sdhci-brcmstb.c   | 2 +-
 drivers/mmc/host/sdhci-cadence.c   | 2 +-
 drivers/mmc/host/sdhci-dove.c      | 2 +-
 drivers/mmc/host/sdhci-iproc.c     | 2 +-
 drivers/mmc/host/sdhci-of-esdhc.c  | 2 +-
 drivers/mmc/host/sdhci-of-hlwd.c   | 2 +-
 drivers/mmc/host/sdhci-of-sparx5.c | 2 +-
 drivers/mmc/host/sdhci-pltfm.c     | 4 +---
 drivers/mmc/host/sdhci-pltfm.h     | 2 +-
 drivers/mmc/host/sdhci-pxav2.c     | 2 +-
 11 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/mmc/host/sdhci-bcm-kona.c b/drivers/mmc/host/sdhci-bcm-kona.c
index 6a93a54fe067..2e3736603853 100644
--- a/drivers/mmc/host/sdhci-bcm-kona.c
+++ b/drivers/mmc/host/sdhci-bcm-kona.c
@@ -319,7 +319,7 @@ static struct platform_driver sdhci_bcm_kona_driver = {
 		.of_match_table = sdhci_bcm_kona_of_match,
 	},
 	.probe		= sdhci_bcm_kona_probe,
-	.remove		= sdhci_pltfm_unregister,
+	.remove_new	= sdhci_pltfm_unregister,
 };
 module_platform_driver(sdhci_bcm_kona_driver);
 
diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c
index 4c22337199cf..a2b6d8f2eeb6 100644
--- a/drivers/mmc/host/sdhci-brcmstb.c
+++ b/drivers/mmc/host/sdhci-brcmstb.c
@@ -430,7 +430,7 @@ static struct platform_driver sdhci_brcmstb_driver = {
 		.of_match_table = of_match_ptr(sdhci_brcm_of_match),
 	},
 	.probe		= sdhci_brcmstb_probe,
-	.remove		= sdhci_pltfm_unregister,
+	.remove_new	= sdhci_pltfm_unregister,
 	.shutdown	= sdhci_brcmstb_shutdown,
 };
 
diff --git a/drivers/mmc/host/sdhci-cadence.c b/drivers/mmc/host/sdhci-cadence.c
index d2f625054689..1702a499b36a 100644
--- a/drivers/mmc/host/sdhci-cadence.c
+++ b/drivers/mmc/host/sdhci-cadence.c
@@ -617,7 +617,7 @@ static struct platform_driver sdhci_cdns_driver = {
 		.of_match_table = sdhci_cdns_match,
 	},
 	.probe = sdhci_cdns_probe,
-	.remove = sdhci_pltfm_unregister,
+	.remove_new = sdhci_pltfm_unregister,
 };
 module_platform_driver(sdhci_cdns_driver);
 
diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c
index 5e5bf82e5976..75335dbf223c 100644
--- a/drivers/mmc/host/sdhci-dove.c
+++ b/drivers/mmc/host/sdhci-dove.c
@@ -110,7 +110,7 @@ static struct platform_driver sdhci_dove_driver = {
 		.of_match_table = sdhci_dove_of_match_table,
 	},
 	.probe		= sdhci_dove_probe,
-	.remove		= sdhci_pltfm_unregister,
+	.remove_new	= sdhci_pltfm_unregister,
 };
 
 module_platform_driver(sdhci_dove_driver);
diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c
index 86eb0045515e..0dbebcecd8fc 100644
--- a/drivers/mmc/host/sdhci-iproc.c
+++ b/drivers/mmc/host/sdhci-iproc.c
@@ -432,7 +432,7 @@ static struct platform_driver sdhci_iproc_driver = {
 		.pm = &sdhci_pltfm_pmops,
 	},
 	.probe = sdhci_iproc_probe,
-	.remove = sdhci_pltfm_unregister,
+	.remove_new = sdhci_pltfm_unregister,
 	.shutdown = sdhci_iproc_shutdown,
 };
 module_platform_driver(sdhci_iproc_driver);
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 48ca1cf15b19..5072b59f6165 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -1521,7 +1521,7 @@ static struct platform_driver sdhci_esdhc_driver = {
 		.pm = &esdhc_of_dev_pm_ops,
 	},
 	.probe = sdhci_esdhc_probe,
-	.remove = sdhci_pltfm_unregister,
+	.remove_new = sdhci_pltfm_unregister,
 };
 
 module_platform_driver(sdhci_esdhc_driver);
diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c
index 12675797b296..cba3ba48e9dc 100644
--- a/drivers/mmc/host/sdhci-of-hlwd.c
+++ b/drivers/mmc/host/sdhci-of-hlwd.c
@@ -85,7 +85,7 @@ static struct platform_driver sdhci_hlwd_driver = {
 		.pm = &sdhci_pltfm_pmops,
 	},
 	.probe = sdhci_hlwd_probe,
-	.remove = sdhci_pltfm_unregister,
+	.remove_new = sdhci_pltfm_unregister,
 };
 
 module_platform_driver(sdhci_hlwd_driver);
diff --git a/drivers/mmc/host/sdhci-of-sparx5.c b/drivers/mmc/host/sdhci-of-sparx5.c
index 28e4ee69e100..26aaab068e00 100644
--- a/drivers/mmc/host/sdhci-of-sparx5.c
+++ b/drivers/mmc/host/sdhci-of-sparx5.c
@@ -260,7 +260,7 @@ static struct platform_driver sdhci_sparx5_driver = {
 		.pm = &sdhci_pltfm_pmops,
 	},
 	.probe = sdhci_sparx5_probe,
-	.remove = sdhci_pltfm_unregister,
+	.remove_new = sdhci_pltfm_unregister,
 };
 
 module_platform_driver(sdhci_sparx5_driver);
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 673e750a8490..72d07b49b0a3 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -187,7 +187,7 @@ int sdhci_pltfm_register(struct platform_device *pdev,
 }
 EXPORT_SYMBOL_GPL(sdhci_pltfm_register);
 
-int sdhci_pltfm_unregister(struct platform_device *pdev)
+void sdhci_pltfm_unregister(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -196,8 +196,6 @@ int sdhci_pltfm_unregister(struct platform_device *pdev)
 	sdhci_remove_host(host, dead);
 	clk_disable_unprepare(pltfm_host->clk);
 	sdhci_pltfm_free(pdev);
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
 
diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h
index 9bd717ff784b..6e6a443dafd9 100644
--- a/drivers/mmc/host/sdhci-pltfm.h
+++ b/drivers/mmc/host/sdhci-pltfm.h
@@ -102,7 +102,7 @@ extern void sdhci_pltfm_free(struct platform_device *pdev);
 extern int sdhci_pltfm_register(struct platform_device *pdev,
 				const struct sdhci_pltfm_data *pdata,
 				size_t priv_size);
-extern int sdhci_pltfm_unregister(struct platform_device *pdev);
+extern void sdhci_pltfm_unregister(struct platform_device *pdev);
 
 extern unsigned int sdhci_pltfm_clk_get_max_clock(struct sdhci_host *host);
 
diff --git a/drivers/mmc/host/sdhci-pxav2.c b/drivers/mmc/host/sdhci-pxav2.c
index 91aca8f8d6ef..1c1e763ce209 100644
--- a/drivers/mmc/host/sdhci-pxav2.c
+++ b/drivers/mmc/host/sdhci-pxav2.c
@@ -359,7 +359,7 @@ static struct platform_driver sdhci_pxav2_driver = {
 		.pm	= &sdhci_pltfm_pmops,
 	},
 	.probe		= sdhci_pxav2_probe,
-	.remove		= sdhci_pltfm_unregister,
+	.remove_new	= sdhci_pltfm_unregister,
 };
 
 module_platform_driver(sdhci_pxav2_driver);
-- 
2.39.0

[PATCH v3 58/62] mmc: uniphier-sd: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/uniphier-sd.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/uniphier-sd.c b/drivers/mmc/host/uniphier-sd.c
index 61acd69fac0e..33a4d1c6ef04 100644
--- a/drivers/mmc/host/uniphier-sd.c
+++ b/drivers/mmc/host/uniphier-sd.c
@@ -727,15 +727,13 @@ static int uniphier_sd_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int uniphier_sd_remove(struct platform_device *pdev)
+static void uniphier_sd_remove(struct platform_device *pdev)
 {
 	struct tmio_mmc_host *host = platform_get_drvdata(pdev);
 
 	tmio_mmc_host_remove(host);
 	uniphier_sd_clk_disable(host);
 	tmio_mmc_host_free(host);
-
-	return 0;
 }
 
 static const struct of_device_id uniphier_sd_match[] = {
@@ -757,7 +755,7 @@ MODULE_DEVICE_TABLE(of, uniphier_sd_match);
 
 static struct platform_driver uniphier_sd_driver = {
 	.probe = uniphier_sd_probe,
-	.remove = uniphier_sd_remove,
+	.remove_new = uniphier_sd_remove,
 	.driver = {
 		.name = "uniphier-sd",
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-- 
2.39.0

[PATCH v3 59/62] mmc: sdhci_am654: Properly handle failures in .remove()

[Yangtao Li]

Returning an error code in a platform driver's remove function is wrong
most of the time and there is an effort to make the callback return
void. To prepare this rework the function not to exit early.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/sdhci_am654.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c
index 7cdf0f54e3a5..1cc84739ef2f 100644
--- a/drivers/mmc/host/sdhci_am654.c
+++ b/drivers/mmc/host/sdhci_am654.c
@@ -870,16 +870,17 @@ static int sdhci_am654_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct device *dev = &pdev->dev;
 	int ret;
 
-	ret = pm_runtime_resume_and_get(&pdev->dev);
+	ret = pm_runtime_get_sync(dev);
 	if (ret < 0)
-		return ret;
+		dev_err(dev, "pm_runtime_get_sync() Failed\n");
 
 	sdhci_remove_host(host, true);
 	clk_disable_unprepare(pltfm_host->clk);
-	pm_runtime_disable(&pdev->dev);
-	pm_runtime_put_noidle(&pdev->dev);
+	pm_runtime_disable(dev);
+	pm_runtime_put_noidle(dev);
 	sdhci_pltfm_free(pdev);
 	return 0;
 }
-- 
2.39.0

Re: [PATCH v3 59/62] mmc: sdhci_am654: Properly handle failures in .remove()

[Adrian Hunter]

On 27/07/23 10:00, Yangtao Li wrote:
> Returning an error code in a platform driver's remove function is wrong
> most of the time and there is an effort to make the callback return
> void. To prepare this rework the function not to exit early.
> 
> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Signed-off-by: Yangtao Li <frank.li@vivo.com>

Acked-by: Adrian Hunter <adrian.hunter@intel.com>

> ---
>  drivers/mmc/host/sdhci_am654.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c
> index 7cdf0f54e3a5..1cc84739ef2f 100644
> --- a/drivers/mmc/host/sdhci_am654.c
> +++ b/drivers/mmc/host/sdhci_am654.c
> @@ -870,16 +870,17 @@ static int sdhci_am654_remove(struct platform_device *pdev)
>  {
>  	struct sdhci_host *host = platform_get_drvdata(pdev);
>  	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> +	struct device *dev = &pdev->dev;
>  	int ret;
>  
> -	ret = pm_runtime_resume_and_get(&pdev->dev);
> +	ret = pm_runtime_get_sync(dev);
>  	if (ret < 0)
> -		return ret;
> +		dev_err(dev, "pm_runtime_get_sync() Failed\n");
>  
>  	sdhci_remove_host(host, true);
>  	clk_disable_unprepare(pltfm_host->clk);
> -	pm_runtime_disable(&pdev->dev);
> -	pm_runtime_put_noidle(&pdev->dev);
> +	pm_runtime_disable(dev);
> +	pm_runtime_put_noidle(dev);
>  	sdhci_pltfm_free(pdev);
>  	return 0;
>  }

[PATCH v3 60/62] mmc: sdhci_am654: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/sdhci_am654.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c
index 1cc84739ef2f..c125485ba80e 100644
--- a/drivers/mmc/host/sdhci_am654.c
+++ b/drivers/mmc/host/sdhci_am654.c
@@ -866,7 +866,7 @@ static int sdhci_am654_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_am654_remove(struct platform_device *pdev)
+static void sdhci_am654_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -882,7 +882,6 @@ static int sdhci_am654_remove(struct platform_device *pdev)
 	pm_runtime_disable(dev);
 	pm_runtime_put_noidle(dev);
 	sdhci_pltfm_free(pdev);
-	return 0;
 }
 
 #ifdef CONFIG_PM
@@ -994,7 +993,7 @@ static struct platform_driver sdhci_am654_driver = {
 		.of_match_table = sdhci_am654_of_match,
 	},
 	.probe = sdhci_am654_probe,
-	.remove = sdhci_am654_remove,
+	.remove_new = sdhci_am654_remove,
 };
 
 module_platform_driver(sdhci_am654_driver);
-- 
2.39.0

Re: [PATCH v3 60/62] mmc: sdhci_am654: Convert to platform remove callback returning void

[Adrian Hunter]

On 27/07/23 10:00, Yangtao Li wrote:
> 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.
> 
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
> 
> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Signed-off-by: Yangtao Li <frank.li@vivo.com>

Acked-by: Adrian Hunter <adrian.hunter@intel.com>

> ---
>  drivers/mmc/host/sdhci_am654.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c
> index 1cc84739ef2f..c125485ba80e 100644
> --- a/drivers/mmc/host/sdhci_am654.c
> +++ b/drivers/mmc/host/sdhci_am654.c
> @@ -866,7 +866,7 @@ static int sdhci_am654_probe(struct platform_device *pdev)
>  	return ret;
>  }
>  
> -static int sdhci_am654_remove(struct platform_device *pdev)
> +static void sdhci_am654_remove(struct platform_device *pdev)
>  {
>  	struct sdhci_host *host = platform_get_drvdata(pdev);
>  	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> @@ -882,7 +882,6 @@ static int sdhci_am654_remove(struct platform_device *pdev)
>  	pm_runtime_disable(dev);
>  	pm_runtime_put_noidle(dev);
>  	sdhci_pltfm_free(pdev);
> -	return 0;
>  }
>  
>  #ifdef CONFIG_PM
> @@ -994,7 +993,7 @@ static struct platform_driver sdhci_am654_driver = {
>  		.of_match_table = sdhci_am654_of_match,
>  	},
>  	.probe = sdhci_am654_probe,
> -	.remove = sdhci_am654_remove,
> +	.remove_new = sdhci_am654_remove,
>  };
>  
>  module_platform_driver(sdhci_am654_driver);

[PATCH v3 61/62] mmc: f-sdh30: Convert to platform remove callback returning void

[Yangtao Li]

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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci_f_sdh30.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c
index b01ffb4d0973..840084ee72e6 100644
--- a/drivers/mmc/host/sdhci_f_sdh30.c
+++ b/drivers/mmc/host/sdhci_f_sdh30.c
@@ -206,7 +206,7 @@ static int sdhci_f_sdh30_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_f_sdh30_remove(struct platform_device *pdev)
+static void sdhci_f_sdh30_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host);
@@ -216,8 +216,6 @@ static int sdhci_f_sdh30_remove(struct platform_device *pdev)
 	clk_disable_unprepare(priv->clk_iface);
 
 	sdhci_pltfm_unregister(pdev);
-
-	return 0;
 }
 
 #ifdef CONFIG_OF
@@ -245,8 +243,8 @@ static struct platform_driver sdhci_f_sdh30_driver = {
 		.acpi_match_table = ACPI_PTR(f_sdh30_acpi_ids),
 		.pm	= &sdhci_pltfm_pmops,
 	},
-	.probe	= sdhci_f_sdh30_probe,
-	.remove	= sdhci_f_sdh30_remove,
+	.probe = sdhci_f_sdh30_probe,
+	.remove_new = sdhci_f_sdh30_remove,
 };
 
 module_platform_driver(sdhci_f_sdh30_driver);
-- 
2.39.0

[PATCH v3 62/62] mmc: f-sdh30: fix order of function calls in sdhci_f_sdh30_remove

[Yangtao Li]

The order of function calls in sdhci_f_sdh30_remove is wrong,
let's call sdhci_pltfm_unregister first.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: 5def5c1c15bf ("mmc: sdhci-f-sdh30: Replace with sdhci_pltfm")
Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 drivers/mmc/host/sdhci_f_sdh30.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c
index 840084ee72e6..964fa18a61a4 100644
--- a/drivers/mmc/host/sdhci_f_sdh30.c
+++ b/drivers/mmc/host/sdhci_f_sdh30.c
@@ -211,11 +211,11 @@ static void sdhci_f_sdh30_remove(struct platform_device *pdev)
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host);
 
+	sdhci_pltfm_unregister(pdev);
+
 	reset_control_assert(priv->rst);
 	clk_disable_unprepare(priv->clk);
 	clk_disable_unprepare(priv->clk_iface);
-
-	sdhci_pltfm_unregister(pdev);
 }
 
 #ifdef CONFIG_OF
-- 
2.39.0

Re: [PATCH v3 62/62] mmc: f-sdh30: fix order of function calls in sdhci_f_sdh30_remove

[Uwe Kleine-König]

[-- Attachment #1: Type: text/plain, Size: 817 bytes --]

On Thu, Jul 27, 2023 at 03:00:51PM +0800, Yangtao Li wrote:
> The order of function calls in sdhci_f_sdh30_remove is wrong,
> let's call sdhci_pltfm_unregister first.
> 
> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Fixes: 5def5c1c15bf ("mmc: sdhci-f-sdh30: Replace with sdhci_pltfm")
> Signed-off-by: Yangtao Li <frank.li@vivo.com>

Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

A cover letter summarizing the changes in this v3 compared to v2 would
be nice. Also mentioning the base for this patch set would simplify
things a bit.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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Re: [PATCH v3 62/62] mmc: f-sdh30: fix order of function calls in sdhci_f_sdh30_remove

[Adrian Hunter]

On 27/07/23 10:00, Yangtao Li wrote:
> The order of function calls in sdhci_f_sdh30_remove is wrong,
> let's call sdhci_pltfm_unregister first.
> 
> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Fixes: 5def5c1c15bf ("mmc: sdhci-f-sdh30: Replace with sdhci_pltfm")
> Signed-off-by: Yangtao Li <frank.li@vivo.com>
> ---
>  drivers/mmc/host/sdhci_f_sdh30.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c
> index 840084ee72e6..964fa18a61a4 100644
> --- a/drivers/mmc/host/sdhci_f_sdh30.c
> +++ b/drivers/mmc/host/sdhci_f_sdh30.c
> @@ -211,11 +211,11 @@ static void sdhci_f_sdh30_remove(struct platform_device *pdev)
>  	struct sdhci_host *host = platform_get_drvdata(pdev);
>  	struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host);
>  
> +	sdhci_pltfm_unregister(pdev);

That also frees priv

> +
>  	reset_control_assert(priv->rst);
>  	clk_disable_unprepare(priv->clk);
>  	clk_disable_unprepare(priv->clk_iface);
> -
> -	sdhci_pltfm_unregister(pdev);
>  }
>  
>  #ifdef CONFIG_OF

Re: [PATCH v3 62/62] mmc: f-sdh30: fix order of function calls in sdhci_f_sdh30_remove

[Adrian Hunter]

On 27/07/23 16:55, Adrian Hunter wrote:
> On 27/07/23 10:00, Yangtao Li wrote:
>> The order of function calls in sdhci_f_sdh30_remove is wrong,
>> let's call sdhci_pltfm_unregister first.
>>
>> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
>> Fixes: 5def5c1c15bf ("mmc: sdhci-f-sdh30: Replace with sdhci_pltfm")
>> Signed-off-by: Yangtao Li <frank.li@vivo.com>
>> ---
>>  drivers/mmc/host/sdhci_f_sdh30.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c
>> index 840084ee72e6..964fa18a61a4 100644
>> --- a/drivers/mmc/host/sdhci_f_sdh30.c
>> +++ b/drivers/mmc/host/sdhci_f_sdh30.c
>> @@ -211,11 +211,11 @@ static void sdhci_f_sdh30_remove(struct platform_device *pdev)
>>  	struct sdhci_host *host = platform_get_drvdata(pdev);
>>  	struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host);
>>  
>> +	sdhci_pltfm_unregister(pdev);
> 
> That also frees priv
> 
>> +
>>  	reset_control_assert(priv->rst);
>>  	clk_disable_unprepare(priv->clk);
>>  	clk_disable_unprepare(priv->clk_iface);
>> -
>> -	sdhci_pltfm_unregister(pdev);
>>  }
>>  
>>  #ifdef CONFIG_OF
> 

So it needs to end up looking something like below, right?

diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c
index 840084ee72e6..47ae853f51aa 100644
--- a/drivers/mmc/host/sdhci_f_sdh30.c
+++ b/drivers/mmc/host/sdhci_f_sdh30.c
@@ -210,12 +210,15 @@ static void sdhci_f_sdh30_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host);
-
-	reset_control_assert(priv->rst);
-	clk_disable_unprepare(priv->clk);
-	clk_disable_unprepare(priv->clk_iface);
+	struct clk *clk_iface = priv->clk_iface;
+	struct reset_control *rst = priv->rst;
+	struct clk *clk = priv->clk;
 
 	sdhci_pltfm_unregister(pdev);
+
+	reset_control_assert(rst);
+	clk_disable_unprepare(clk);
+	clk_disable_unprepare(clk_iface);
 }
 
 #ifdef CONFIG_OF

Re: [PATCH v3 62/62] mmc: f-sdh30: fix order of function calls in sdhci_f_sdh30_remove

[Uwe Kleine-König]

[-- Attachment #1: Type: text/plain, Size: 1976 bytes --]

Hello,

On Thu, Aug 03, 2023 at 08:46:08AM +0300, Adrian Hunter wrote:
> On 27/07/23 16:55, Adrian Hunter wrote:
> >> diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c
> >> index 840084ee72e6..964fa18a61a4 100644
> >> --- a/drivers/mmc/host/sdhci_f_sdh30.c
> >> +++ b/drivers/mmc/host/sdhci_f_sdh30.c
> >> @@ -211,11 +211,11 @@ static void sdhci_f_sdh30_remove(struct platform_device *pdev)
> >>  	struct sdhci_host *host = platform_get_drvdata(pdev);
> >>  	struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host);
> >>  
> >> +	sdhci_pltfm_unregister(pdev);
> > 
> > That also frees priv
> > 
> >> +
> >>  	reset_control_assert(priv->rst);
> >>  	clk_disable_unprepare(priv->clk);
> >>  	clk_disable_unprepare(priv->clk_iface);
> >> -
> >> -	sdhci_pltfm_unregister(pdev);
> >>  }
> >>  
> >>  #ifdef CONFIG_OF
> > 
> 
> So it needs to end up looking something like below, right?
> 
> diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c
> index 840084ee72e6..47ae853f51aa 100644
> --- a/drivers/mmc/host/sdhci_f_sdh30.c
> +++ b/drivers/mmc/host/sdhci_f_sdh30.c
> @@ -210,12 +210,15 @@ static void sdhci_f_sdh30_remove(struct platform_device *pdev)
>  {
>  	struct sdhci_host *host = platform_get_drvdata(pdev);
>  	struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host);
> -
> -	reset_control_assert(priv->rst);
> -	clk_disable_unprepare(priv->clk);
> -	clk_disable_unprepare(priv->clk_iface);
> +	struct clk *clk_iface = priv->clk_iface;
> +	struct reset_control *rst = priv->rst;
> +	struct clk *clk = priv->clk;
>  
>  	sdhci_pltfm_unregister(pdev);
> +
> +	reset_control_assert(rst);
> +	clk_disable_unprepare(clk);
> +	clk_disable_unprepare(clk_iface);
>  }

Looks right to me.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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Re: [PATCH v3 62/62] mmc: f-sdh30: fix order of function calls in sdhci_f_sdh30_remove

[Ulf Hansson]

On Thu, 3 Aug 2023 at 07:46, Adrian Hunter <adrian.hunter@intel.com> wrote:
>
> On 27/07/23 16:55, Adrian Hunter wrote:
> > On 27/07/23 10:00, Yangtao Li wrote:
> >> The order of function calls in sdhci_f_sdh30_remove is wrong,
> >> let's call sdhci_pltfm_unregister first.
> >>
> >> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> >> Fixes: 5def5c1c15bf ("mmc: sdhci-f-sdh30: Replace with sdhci_pltfm")
> >> Signed-off-by: Yangtao Li <frank.li@vivo.com>
> >> ---
> >>  drivers/mmc/host/sdhci_f_sdh30.c | 4 ++--
> >>  1 file changed, 2 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c
> >> index 840084ee72e6..964fa18a61a4 100644
> >> --- a/drivers/mmc/host/sdhci_f_sdh30.c
> >> +++ b/drivers/mmc/host/sdhci_f_sdh30.c
> >> @@ -211,11 +211,11 @@ static void sdhci_f_sdh30_remove(struct platform_device *pdev)
> >>      struct sdhci_host *host = platform_get_drvdata(pdev);
> >>      struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host);
> >>
> >> +    sdhci_pltfm_unregister(pdev);
> >
> > That also frees priv
> >
> >> +
> >>      reset_control_assert(priv->rst);
> >>      clk_disable_unprepare(priv->clk);
> >>      clk_disable_unprepare(priv->clk_iface);
> >> -
> >> -    sdhci_pltfm_unregister(pdev);
> >>  }
> >>
> >>  #ifdef CONFIG_OF
> >
>
> So it needs to end up looking something like below, right?
>
> diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c
> index 840084ee72e6..47ae853f51aa 100644
> --- a/drivers/mmc/host/sdhci_f_sdh30.c
> +++ b/drivers/mmc/host/sdhci_f_sdh30.c
> @@ -210,12 +210,15 @@ static void sdhci_f_sdh30_remove(struct platform_device *pdev)
>  {
>         struct sdhci_host *host = platform_get_drvdata(pdev);
>         struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host);
> -
> -       reset_control_assert(priv->rst);
> -       clk_disable_unprepare(priv->clk);
> -       clk_disable_unprepare(priv->clk_iface);
> +       struct clk *clk_iface = priv->clk_iface;
> +       struct reset_control *rst = priv->rst;
> +       struct clk *clk = priv->clk;
>
>         sdhci_pltfm_unregister(pdev);
> +
> +       reset_control_assert(rst);
> +       clk_disable_unprepare(clk);
> +       clk_disable_unprepare(clk_iface);
>  }

I have amended the patch according to the above. Added Adrian's ack,
rebased it on top of the fixes branch, added a stable tag and applied
it for fixes.

Thanks to both of you!

Kind regards
Uffe

Re: [PATCH v3 01/62] mmc: sunxi: Convert to platform remove callback returning void

[Ulf Hansson]

On Thu, 27 Jul 2023 at 09:01, Yangtao Li <frank.li@vivo.com> wrote:
>
> 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.
>
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
>
> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> Signed-off-by: Yangtao Li <frank.li@vivo.com>
> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Normally I would prefer one patch per host driver, but in this series
the changes are so trivial that it just becomes more difficult for me
to manage.

Please squash all changes that convert from using ->remove() to
.remove_new() into one single patch for the mmc host drivers. Note
that, I discovered there are some additional cleanups being part of
the series, those deserve to be submitted indepently of this.

Kind regards
Uffe

> ---
>  drivers/mmc/host/sunxi-mmc.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
> index 69dcb8805e05..d3bd0ac99ec4 100644
> --- a/drivers/mmc/host/sunxi-mmc.c
> +++ b/drivers/mmc/host/sunxi-mmc.c
> @@ -1486,7 +1486,7 @@ static int sunxi_mmc_probe(struct platform_device *pdev)
>         return ret;
>  }
>
> -static int sunxi_mmc_remove(struct platform_device *pdev)
> +static void sunxi_mmc_remove(struct platform_device *pdev)
>  {
>         struct mmc_host *mmc = platform_get_drvdata(pdev);
>         struct sunxi_mmc_host *host = mmc_priv(mmc);
> @@ -1499,8 +1499,6 @@ static int sunxi_mmc_remove(struct platform_device *pdev)
>         }
>         dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
>         mmc_free_host(mmc);
> -
> -       return 0;
>  }
>
>  #ifdef CONFIG_PM
> @@ -1556,7 +1554,7 @@ static struct platform_driver sunxi_mmc_driver = {
>                 .pm = &sunxi_mmc_pm_ops,
>         },
>         .probe          = sunxi_mmc_probe,
> -       .remove         = sunxi_mmc_remove,
> +       .remove_new     = sunxi_mmc_remove,
>  };
>  module_platform_driver(sunxi_mmc_driver);
>
> --
> 2.39.0
>

Re: [PATCH v3 01/62] mmc: sunxi: Convert to platform remove callback returning void

[Ulf Hansson]

On Mon, 7 Aug 2023 at 17:26, Ulf Hansson <ulf.hansson@linaro.org> wrote:
>
> On Thu, 27 Jul 2023 at 09:01, Yangtao Li <frank.li@vivo.com> wrote:
> >
> > 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.
> >
> > Trivially convert this driver from always returning zero in the remove
> > callback to the void returning variant.
> >
> > Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> > Signed-off-by: Yangtao Li <frank.li@vivo.com>
> > Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
>
> Normally I would prefer one patch per host driver, but in this series
> the changes are so trivial that it just becomes more difficult for me
> to manage.
>
> Please squash all changes that convert from using ->remove() to
> .remove_new() into one single patch for the mmc host drivers. Note
> that, I discovered there are some additional cleanups being part of
> the series, those deserve to be submitted indepently of this.

Okay, so I decided to pick the series anyway. Applied for next (except
for patch 62 which went to fixes), thanks!

Kind regards
Uffe



>
> Kind regards
> Uffe
>
> > ---
> >  drivers/mmc/host/sunxi-mmc.c | 6 ++----
> >  1 file changed, 2 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
> > index 69dcb8805e05..d3bd0ac99ec4 100644
> > --- a/drivers/mmc/host/sunxi-mmc.c
> > +++ b/drivers/mmc/host/sunxi-mmc.c
> > @@ -1486,7 +1486,7 @@ static int sunxi_mmc_probe(struct platform_device *pdev)
> >         return ret;
> >  }
> >
> > -static int sunxi_mmc_remove(struct platform_device *pdev)
> > +static void sunxi_mmc_remove(struct platform_device *pdev)
> >  {
> >         struct mmc_host *mmc = platform_get_drvdata(pdev);
> >         struct sunxi_mmc_host *host = mmc_priv(mmc);
> > @@ -1499,8 +1499,6 @@ static int sunxi_mmc_remove(struct platform_device *pdev)
> >         }
> >         dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
> >         mmc_free_host(mmc);
> > -
> > -       return 0;
> >  }
> >
> >  #ifdef CONFIG_PM
> > @@ -1556,7 +1554,7 @@ static struct platform_driver sunxi_mmc_driver = {
> >                 .pm = &sunxi_mmc_pm_ops,
> >         },
> >         .probe          = sunxi_mmc_probe,
> > -       .remove         = sunxi_mmc_remove,
> > +       .remove_new     = sunxi_mmc_remove,
> >  };
> >  module_platform_driver(sunxi_mmc_driver);
> >
> > --
> > 2.39.0
> >