From 4af318c979ec79a201a297d89b93bec20099dbdd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 19 Dec 2023 18:32:05 +0100 Subject: [PATCH] fpga: dfl-fme-region: 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 Acked-by: Xu Yilun Link: https://lore.kernel.org/r/13187db1642f81f04e55be0a26045f09ccc95d37.1703006638.git.u.kleine-koenig@pengutronix.de Signed-off-by: Xu Yilun --- drivers/fpga/dfl-fme-region.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/fpga/dfl-fme-region.c b/drivers/fpga/dfl-fme-region.c index 4aebde0a7f1c..71616f8b4982 100644 --- a/drivers/fpga/dfl-fme-region.c +++ b/drivers/fpga/dfl-fme-region.c @@ -61,15 +61,13 @@ eprobe_mgr_put: return ret; } -static int fme_region_remove(struct platform_device *pdev) +static void fme_region_remove(struct platform_device *pdev) { struct fpga_region *region = platform_get_drvdata(pdev); struct fpga_manager *mgr = region->mgr; fpga_region_unregister(region); fpga_mgr_put(mgr); - - return 0; } static struct platform_driver fme_region_driver = { @@ -77,7 +75,7 @@ static struct platform_driver fme_region_driver = { .name = DFL_FPGA_FME_REGION, }, .probe = fme_region_probe, - .remove = fme_region_remove, + .remove_new = fme_region_remove, }; module_platform_driver(fme_region_driver);