From f04ed6b174058d82a2230f70796633327dc758ba Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 19 Dec 2023 18:32:03 +0100 Subject: [PATCH] fpga: dfl-fme-br: 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/be0728ae8e047c6b443492dc563cf92f397b269d.1703006638.git.u.kleine-koenig@pengutronix.de Signed-off-by: Xu Yilun --- drivers/fpga/dfl-fme-br.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/fpga/dfl-fme-br.c b/drivers/fpga/dfl-fme-br.c index 808d1f4d76df..0b01b3895277 100644 --- a/drivers/fpga/dfl-fme-br.c +++ b/drivers/fpga/dfl-fme-br.c @@ -78,7 +78,7 @@ static int fme_br_probe(struct platform_device *pdev) return 0; } -static int fme_br_remove(struct platform_device *pdev) +static void fme_br_remove(struct platform_device *pdev) { struct fpga_bridge *br = platform_get_drvdata(pdev); struct fme_br_priv *priv = br->priv; @@ -89,8 +89,6 @@ static int fme_br_remove(struct platform_device *pdev) put_device(&priv->port_pdev->dev); if (priv->port_ops) dfl_fpga_port_ops_put(priv->port_ops); - - return 0; } static struct platform_driver fme_br_driver = { @@ -98,7 +96,7 @@ static struct platform_driver fme_br_driver = { .name = DFL_FPGA_FME_BRIDGE, }, .probe = fme_br_probe, - .remove = fme_br_remove, + .remove_new = fme_br_remove, }; module_platform_driver(fme_br_driver);