From 49fc3ffe9f7c239319f009ce3f5dd0cc5bfc64fa Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Fri, 8 Mar 2024 09:51:15 +0100 Subject: [PATCH] pps: clients: gpio: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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. Acked-by: Rodolfo Giometti Link: https://lore.kernel.org/r/f4b9402af72e5f285c8b0f068076a76418f653f5.1709886922.git.u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König --- drivers/pps/clients/pps-gpio.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/pps/clients/pps-gpio.c b/drivers/pps/clients/pps-gpio.c index 2f4b11b4dfcd..791fdc9326dd 100644 --- a/drivers/pps/clients/pps-gpio.c +++ b/drivers/pps/clients/pps-gpio.c @@ -220,7 +220,7 @@ static int pps_gpio_probe(struct platform_device *pdev) return 0; } -static int pps_gpio_remove(struct platform_device *pdev) +static void pps_gpio_remove(struct platform_device *pdev) { struct pps_gpio_device_data *data = platform_get_drvdata(pdev); @@ -229,7 +229,6 @@ static int pps_gpio_remove(struct platform_device *pdev) /* reset echo pin in any case */ gpiod_set_value(data->echo_pin, 0); dev_info(&pdev->dev, "removed IRQ %d as PPS source\n", data->irq); - return 0; } static const struct of_device_id pps_gpio_dt_ids[] = { @@ -240,7 +239,7 @@ MODULE_DEVICE_TABLE(of, pps_gpio_dt_ids); static struct platform_driver pps_gpio_driver = { .probe = pps_gpio_probe, - .remove = pps_gpio_remove, + .remove_new = pps_gpio_remove, .driver = { .name = PPS_GPIO_NAME, .of_match_table = pps_gpio_dt_ids,