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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-09-28 09:06:44 +0200
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2023-10-02 08:53:57 +0200
commit2ae6a45f8135ae93bf0841e9c93f55b073f16b34 (patch)
treec44bb222c82e628b940a390d0330498686da7f1b /drivers/gpio/gpio-altera.c
parent3a7fd473bd5d430c8045830e9a09e8dc35bcca6b (diff)
downloadlwn-2ae6a45f8135ae93bf0841e9c93f55b073f16b34.tar.gz
lwn-2ae6a45f8135ae93bf0841e9c93f55b073f16b34.zip
gpio: altera: 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: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-altera.c')
-rw-r--r--drivers/gpio/gpio-altera.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-altera.c b/drivers/gpio/gpio-altera.c
index 54d7c450c596..c2edfbb231fc 100644
--- a/drivers/gpio/gpio-altera.c
+++ b/drivers/gpio/gpio-altera.c
@@ -317,13 +317,11 @@ skip_irq:
return 0;
}
-static int altera_gpio_remove(struct platform_device *pdev)
+static void altera_gpio_remove(struct platform_device *pdev)
{
struct altera_gpio_chip *altera_gc = platform_get_drvdata(pdev);
of_mm_gpiochip_remove(&altera_gc->mmchip);
-
- return 0;
}
static const struct of_device_id altera_gpio_of_match[] = {
@@ -338,7 +336,7 @@ static struct platform_driver altera_gpio_driver = {
.of_match_table = altera_gpio_of_match,
},
.probe = altera_gpio_probe,
- .remove = altera_gpio_remove,
+ .remove_new = altera_gpio_remove,
};
static int __init altera_gpio_init(void)