diff mbox series

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

Message ID 20230928070706.2290137-24-u.kleine-koenig@pengutronix.de
State New
Headers
Series gpio: Convert to platform remove callback returning void |

Commit Message

Uwe Kleine-König Sept. 28, 2023, 7:07 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-zynq.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
index 324e942c0650..466e23031afc 100644
--- a/drivers/gpio/gpio-zynq.c
+++ b/drivers/gpio/gpio-zynq.c
@@ -1010,7 +1010,7 @@  static int zynq_gpio_probe(struct platform_device *pdev)
  *
  * Return: 0 always
  */
-static int zynq_gpio_remove(struct platform_device *pdev)
+static void zynq_gpio_remove(struct platform_device *pdev)
 {
 	struct zynq_gpio *gpio = platform_get_drvdata(pdev);
 	int ret;
@@ -1022,7 +1022,6 @@  static int zynq_gpio_remove(struct platform_device *pdev)
 	clk_disable_unprepare(gpio->clk);
 	device_set_wakeup_capable(&pdev->dev, 0);
 	pm_runtime_disable(&pdev->dev);
-	return 0;
 }
 
 static struct platform_driver zynq_gpio_driver = {
@@ -1032,7 +1031,7 @@  static struct platform_driver zynq_gpio_driver = {
 		.of_match_table = zynq_gpio_of_match,
 	},
 	.probe = zynq_gpio_probe,
-	.remove = zynq_gpio_remove,
+	.remove_new = zynq_gpio_remove,
 };
 
 module_platform_driver(zynq_gpio_driver);