From 30a7821f12353b3833b2dc28ced3ff4ec840df08 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Sun, 10 Dec 2023 23:12:16 +0100 Subject: hwrng: atmel - 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. Signed-off-by: Uwe Kleine-König Acked-by: Nicolas Ferre Signed-off-by: Herbert Xu --- drivers/char/hw_random/atmel-rng.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers/char') diff --git a/drivers/char/hw_random/atmel-rng.c b/drivers/char/hw_random/atmel-rng.c index a37367ebcbac..e9157255f851 100644 --- a/drivers/char/hw_random/atmel-rng.c +++ b/drivers/char/hw_random/atmel-rng.c @@ -161,15 +161,13 @@ static int atmel_trng_probe(struct platform_device *pdev) return ret; } -static int atmel_trng_remove(struct platform_device *pdev) +static void atmel_trng_remove(struct platform_device *pdev) { struct atmel_trng *trng = platform_get_drvdata(pdev); atmel_trng_cleanup(trng); pm_runtime_disable(&pdev->dev); pm_runtime_set_suspended(&pdev->dev); - - return 0; } static int __maybe_unused atmel_trng_runtime_suspend(struct device *dev) @@ -218,7 +216,7 @@ MODULE_DEVICE_TABLE(of, atmel_trng_dt_ids); static struct platform_driver atmel_trng_driver = { .probe = atmel_trng_probe, - .remove = atmel_trng_remove, + .remove_new = atmel_trng_remove, .driver = { .name = "atmel-trng", .pm = pm_ptr(&atmel_trng_pm_ops), -- cgit v1.2.3