Hello, On Sun, Mar 26, 2023 at 04:30:28PM +0200, Uwe Kleine-König wrote: > 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 (mostly) ignored > 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. > > Trivially convert this driver from always returning zero in the remove > callback to the void returning variant. I fatfingered sending out this series and this patch is a duplicate, please ignore this patch, 001/117 with the otherwise same subject is the right one. (They only differ in the number, this patch is advertised as 001 in the cover letter.) Sorry, Uwe
diff --git a/drivers/media/cec/platform/cec-gpio/cec-gpio.c b/drivers/media/cec/platform/cec-gpio/cec-gpio.c index c8c4efc83f5f..ff34490fd869 100644 --- a/drivers/media/cec/platform/cec-gpio/cec-gpio.c +++ b/drivers/media/cec/platform/cec-gpio/cec-gpio.c @@ -269,13 +269,12 @@ static int cec_gpio_probe(struct platform_device *pdev) return ret; } -static int cec_gpio_remove(struct platform_device *pdev) +static void cec_gpio_remove(struct platform_device *pdev) { struct cec_gpio *cec = platform_get_drvdata(pdev); cec_notifier_cec_adap_unregister(cec->notifier, cec->adap); cec_unregister_adapter(cec->adap); - return 0; } static const struct of_device_id cec_gpio_match[] = { @@ -288,7 +287,7 @@ MODULE_DEVICE_TABLE(of, cec_gpio_match); static struct platform_driver cec_gpio_pdrv = { .probe = cec_gpio_probe, - .remove = cec_gpio_remove, + .remove_new = cec_gpio_remove, .driver = { .name = "cec-gpio", .of_match_table = cec_gpio_match,
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 (mostly) ignored 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. 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/media/cec/platform/cec-gpio/cec-gpio.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)