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soc/aspeed: Convert to platform remove callback returning void 

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) 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. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

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

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20230925095532.1984344-2-u.kleine-koenig@pengutronix.de
Link: https://lore.kernel.org/r/20230925095532.1984344-3-u.kleine-koenig@pengutronix.de
Link: https://lore.kernel.org/r/20230925095532.1984344-4-u.kleine-koenig@pengutronix.de
Link: https://lore.kernel.org/r/20230925095532.1984344-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Joel Stanley <joel@jms.id.au>
This commit is contained in:
Uwe Kleine-König 2023-09-25 11:54:52 +02:00 committed by Joel Stanley
parent 0bb80ecc33
commit 0af9e89106
4 changed files with 8 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/soc/aspeed/aspeed-lpc-ctrl.c
View File

@ -332,14 +332,12 @@ err:
return rc;
}
static int aspeed_lpc_ctrl_remove(struct platform_device *pdev)
static void aspeed_lpc_ctrl_remove(struct platform_device *pdev)
{
struct aspeed_lpc_ctrl *lpc_ctrl = dev_get_drvdata(&pdev->dev);
misc_deregister(&lpc_ctrl->miscdev);
clk_disable_unprepare(lpc_ctrl->clk);
return 0;
}
static const struct of_device_id aspeed_lpc_ctrl_match[] = {
@ -355,7 +353,7 @@ static struct platform_driver aspeed_lpc_ctrl_driver = {
.of_match_table = aspeed_lpc_ctrl_match,
},
.probe = aspeed_lpc_ctrl_probe,
.remove = aspeed_lpc_ctrl_remove,
.remove_new = aspeed_lpc_ctrl_remove,
};
module_platform_driver(aspeed_lpc_ctrl_driver);

6
drivers/soc/aspeed/aspeed-lpc-snoop.c
View File

@ -331,7 +331,7 @@ err:
return rc;
}
static int aspeed_lpc_snoop_remove(struct platform_device *pdev)
static void aspeed_lpc_snoop_remove(struct platform_device *pdev)
{
struct aspeed_lpc_snoop *lpc_snoop = dev_get_drvdata(&pdev->dev);
@ -340,8 +340,6 @@ static int aspeed_lpc_snoop_remove(struct platform_device *pdev)
aspeed_lpc_disable_snoop(lpc_snoop, 1);
clk_disable_unprepare(lpc_snoop->clk);
return 0;
}
static const struct aspeed_lpc_snoop_model_data ast2400_model_data = {
@ -368,7 +366,7 @@ static struct platform_driver aspeed_lpc_snoop_driver = {
.of_match_table = aspeed_lpc_snoop_match,
},
.probe = aspeed_lpc_snoop_probe,
.remove = aspeed_lpc_snoop_remove,
.remove_new = aspeed_lpc_snoop_remove,
};
module_platform_driver(aspeed_lpc_snoop_driver);

6
drivers/soc/aspeed/aspeed-p2a-ctrl.c
View File

@ -383,13 +383,11 @@ static int aspeed_p2a_ctrl_probe(struct platform_device *pdev)
return rc;
}
static int aspeed_p2a_ctrl_remove(struct platform_device *pdev)
static void aspeed_p2a_ctrl_remove(struct platform_device *pdev)
{
struct aspeed_p2a_ctrl *p2a_ctrl = dev_get_drvdata(&pdev->dev);
misc_deregister(&p2a_ctrl->miscdev);
return 0;
}
#define SCU2C_DRAM BIT(25)
@ -433,7 +431,7 @@ static struct platform_driver aspeed_p2a_ctrl_driver = {
.of_match_table = aspeed_p2a_ctrl_match,
},
.probe = aspeed_p2a_ctrl_probe,
.remove = aspeed_p2a_ctrl_remove,
.remove_new = aspeed_p2a_ctrl_remove,
};
module_platform_driver(aspeed_p2a_ctrl_driver);

6
drivers/soc/aspeed/aspeed-uart-routing.c
View File

@ -565,14 +565,12 @@ static int aspeed_uart_routing_probe(struct platform_device *pdev)
return 0;
}
static int aspeed_uart_routing_remove(struct platform_device *pdev)
static void aspeed_uart_routing_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct aspeed_uart_routing *uart_routing = platform_get_drvdata(pdev);
sysfs_remove_group(&dev->kobj, uart_routing->attr_grp);
return 0;
}
static const struct of_device_id aspeed_uart_routing_table[] = {
@ -591,7 +589,7 @@ static struct platform_driver aspeed_uart_routing_driver = {
.of_match_table = aspeed_uart_routing_table,
},
.probe = aspeed_uart_routing_probe,
.remove = aspeed_uart_routing_remove,
.remove_new = aspeed_uart_routing_remove,
};
module_platform_driver(aspeed_uart_routing_driver);