From b9c5544877b03b7d5b3c4c97e9133d0bb695c9cb Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Fri, 3 Mar 2023 18:19:18 +0100 Subject: [PATCH] spi: at91-usart: 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 (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 Link: https://lore.kernel.org/r/20230303172041.2103336-5-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown --- drivers/spi/spi-at91-usart.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-at91-usart.c b/drivers/spi/spi-at91-usart.c index fab9d22..4fb3653 100644 --- a/drivers/spi/spi-at91-usart.c +++ b/drivers/spi/spi-at91-usart.c @@ -647,15 +647,13 @@ __maybe_unused static int at91_usart_spi_resume(struct device *dev) return spi_controller_resume(ctrl); } -static int at91_usart_spi_remove(struct platform_device *pdev) +static void at91_usart_spi_remove(struct platform_device *pdev) { struct spi_controller *ctlr = platform_get_drvdata(pdev); struct at91_usart_spi *aus = spi_controller_get_devdata(ctlr); at91_usart_spi_release_dma(ctlr); clk_disable_unprepare(aus->clk); - - return 0; } static const struct dev_pm_ops at91_usart_spi_pm_ops = { @@ -670,7 +668,7 @@ static struct platform_driver at91_usart_spi_driver = { .pm = &at91_usart_spi_pm_ops, }, .probe = at91_usart_spi_probe, - .remove = at91_usart_spi_remove, + .remove_new = at91_usart_spi_remove, }; module_platform_driver(at91_usart_spi_driver); -- 2.7.4