From 08cfceeeea1eebfe70b02d8f411398347a9a711d Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Thu, 18 May 2023 01:02:32 +0200 Subject: [PATCH] usb: typec: mux: gpio-sbu: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 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() is 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 Reviewed-by: Bjorn Andersson Acked-by: Heikki Krogerus Link: https://lore.kernel.org/r/20230517230239.187727-91-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/mux/gpio-sbu-mux.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/typec/mux/gpio-sbu-mux.c b/drivers/usb/typec/mux/gpio-sbu-mux.c index c07856069d436..ad60fd4e8431e 100644 --- a/drivers/usb/typec/mux/gpio-sbu-mux.c +++ b/drivers/usb/typec/mux/gpio-sbu-mux.c @@ -137,7 +137,7 @@ static int gpio_sbu_mux_probe(struct platform_device *pdev) return 0; } -static int gpio_sbu_mux_remove(struct platform_device *pdev) +static void gpio_sbu_mux_remove(struct platform_device *pdev) { struct gpio_sbu_mux *sbu_mux = platform_get_drvdata(pdev); @@ -145,8 +145,6 @@ static int gpio_sbu_mux_remove(struct platform_device *pdev) typec_mux_unregister(sbu_mux->mux); typec_switch_unregister(sbu_mux->sw); - - return 0; } static const struct of_device_id gpio_sbu_mux_match[] = { @@ -157,7 +155,7 @@ MODULE_DEVICE_TABLE(of, gpio_sbu_mux_match); static struct platform_driver gpio_sbu_mux_driver = { .probe = gpio_sbu_mux_probe, - .remove = gpio_sbu_mux_remove, + .remove_new = gpio_sbu_mux_remove, .driver = { .name = "gpio_sbu_mux", .of_match_table = gpio_sbu_mux_match, -- 2.30.2