From 733dbb8d62f33448c0d7470ba06ce39bdd790ddd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 19 Sep 2023 15:31:37 +0200 Subject: [PATCH] dmaengine: mv_xor_v2: 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/20230919133207.1400430-30-u.kleine-koenig@pengutronix.de Signed-off-by: Vinod Koul --- drivers/dma/mv_xor_v2.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/dma/mv_xor_v2.c b/drivers/dma/mv_xor_v2.c index 0e1e9ca1c005..1ebfbe88e733 100644 --- a/drivers/dma/mv_xor_v2.c +++ b/drivers/dma/mv_xor_v2.c @@ -855,7 +855,7 @@ free_msi_irqs: return ret; } -static int mv_xor_v2_remove(struct platform_device *pdev) +static void mv_xor_v2_remove(struct platform_device *pdev) { struct mv_xor_v2_device *xor_dev = platform_get_drvdata(pdev); @@ -870,8 +870,6 @@ static int mv_xor_v2_remove(struct platform_device *pdev) platform_msi_domain_free_irqs(&pdev->dev); tasklet_kill(&xor_dev->irq_tasklet); - - return 0; } #ifdef CONFIG_OF @@ -886,7 +884,7 @@ static struct platform_driver mv_xor_v2_driver = { .probe = mv_xor_v2_probe, .suspend = mv_xor_v2_suspend, .resume = mv_xor_v2_resume, - .remove = mv_xor_v2_remove, + .remove_new = mv_xor_v2_remove, .driver = { .name = "mv_xor_v2", .of_match_table = of_match_ptr(mv_xor_v2_dt_ids),