From 7689bca111997e0d7a12cf6457fc26a52b8c800f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 19 Sep 2023 15:31:15 +0200 Subject: [PATCH] dmaengine: bestcomm: bestcomm: 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() is 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 Link: https://lore.kernel.org/r/20230919133207.1400430-8-u.kleine-koenig@pengutronix.de Signed-off-by: Vinod Koul --- drivers/dma/bestcomm/bestcomm.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/dma/bestcomm/bestcomm.c b/drivers/dma/bestcomm/bestcomm.c index 80096f94032d..0bbaa7620bdd 100644 --- a/drivers/dma/bestcomm/bestcomm.c +++ b/drivers/dma/bestcomm/bestcomm.c @@ -455,7 +455,7 @@ error_ofput: } -static int mpc52xx_bcom_remove(struct platform_device *op) +static void mpc52xx_bcom_remove(struct platform_device *op) { /* Clean up the engine */ bcom_engine_cleanup(); @@ -473,8 +473,6 @@ static int mpc52xx_bcom_remove(struct platform_device *op) /* Release memory */ kfree(bcom_eng); bcom_eng = NULL; - - return 0; } static const struct of_device_id mpc52xx_bcom_of_match[] = { @@ -488,7 +486,7 @@ MODULE_DEVICE_TABLE(of, mpc52xx_bcom_of_match); static struct platform_driver mpc52xx_bcom_of_platform_driver = { .probe = mpc52xx_bcom_probe, - .remove = mpc52xx_bcom_remove, + .remove_new = mpc52xx_bcom_remove, .driver = { .name = DRIVER_NAME, .of_match_table = mpc52xx_bcom_of_match,