diff mbox series

[06/23] gpio: ftgpio010: Convert to platform remove callback returning void

Message ID 20230928070706.2290137-7-u.kleine-koenig@pengutronix.de
State Accepted
Commit b57d8416893fe1392984c5c25b1765fac152aea3
Headers show
Series [01/23] gpio: altera: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König Sept. 28, 2023, 7:06 a.m. UTC 
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>
---
 drivers/gpio/gpio-ftgpio010.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpio/gpio-ftgpio010.c b/drivers/gpio/gpio-ftgpio010.c
index 5ce59dcf02e3..97d345b59352 100644
--- a/drivers/gpio/gpio-ftgpio010.c
+++ b/drivers/gpio/gpio-ftgpio010.c
@@ -324,13 +324,11 @@  static int ftgpio_gpio_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int ftgpio_gpio_remove(struct platform_device *pdev)
+static void ftgpio_gpio_remove(struct platform_device *pdev)
 {
 	struct ftgpio_gpio *g = platform_get_drvdata(pdev);
 
 	clk_disable_unprepare(g->clk);
-
-	return 0;
 }
 
 static const struct of_device_id ftgpio_gpio_of_match[] = {
@@ -352,6 +350,6 @@  static struct platform_driver ftgpio_gpio_driver = {
 		.of_match_table = ftgpio_gpio_of_match,
 	},
 	.probe = ftgpio_gpio_probe,
-	.remove = ftgpio_gpio_remove,
+	.remove_new = ftgpio_gpio_remove,
 };
 builtin_platform_driver(ftgpio_gpio_driver);