From 0791bdf56112d90d0a04cbbf644d0211d05faeb6 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Sun, 10 Dec 2023 23:12:21 +0100 Subject: hwrng: mxc - 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 Signed-off-by: Herbert Xu --- drivers/char/hw_random/mxc-rnga.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers/char') diff --git a/drivers/char/hw_random/mxc-rnga.c b/drivers/char/hw_random/mxc-rnga.c index 008763c988ed..07ec000e4cd7 100644 --- a/drivers/char/hw_random/mxc-rnga.c +++ b/drivers/char/hw_random/mxc-rnga.c @@ -176,15 +176,13 @@ err_ioremap: return err; } -static int __exit mxc_rnga_remove(struct platform_device *pdev) +static void __exit mxc_rnga_remove(struct platform_device *pdev) { struct mxc_rng *mxc_rng = platform_get_drvdata(pdev); hwrng_unregister(&mxc_rng->rng); clk_disable_unprepare(mxc_rng->clk); - - return 0; } static const struct of_device_id mxc_rnga_of_match[] = { @@ -199,7 +197,7 @@ static struct platform_driver mxc_rnga_driver = { .name = "mxc_rnga", .of_match_table = mxc_rnga_of_match, }, - .remove = __exit_p(mxc_rnga_remove), + .remove_new = __exit_p(mxc_rnga_remove), }; module_platform_driver_probe(mxc_rnga_driver, mxc_rnga_probe); -- cgit v1.2.3