From 1260486a347567c33e0118626bb8778e342e6080 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 19 Sep 2023 15:31:39 +0200 Subject: [PATCH] dmaengine: owl-dma: 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/20230919133207.1400430-32-u.kleine-koenig@pengutronix.de Signed-off-by: Vinod Koul --- drivers/dma/owl-dma.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/dma/owl-dma.c b/drivers/dma/owl-dma.c index 384476757c5e..4e76c4ec2d39 100644 --- a/drivers/dma/owl-dma.c +++ b/drivers/dma/owl-dma.c @@ -1231,7 +1231,7 @@ err_pool_free: return ret; } -static int owl_dma_remove(struct platform_device *pdev) +static void owl_dma_remove(struct platform_device *pdev) { struct owl_dma *od = platform_get_drvdata(pdev); @@ -1248,13 +1248,11 @@ static int owl_dma_remove(struct platform_device *pdev) clk_disable_unprepare(od->clk); dma_pool_destroy(od->lli_pool); - - return 0; } static struct platform_driver owl_dma_driver = { .probe = owl_dma_probe, - .remove = owl_dma_remove, + .remove_new = owl_dma_remove, .driver = { .name = "dma-owl", .of_match_table = of_match_ptr(owl_dma_match),