From a861a27a0e3ba6f347ccab2fab0f5c3b52ddfce0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Thu, 23 Nov 2023 17:56:36 +0100 Subject: [PATCH] mfd: mcp-sa11x0: 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 Link: https://lore.kernel.org/r/20231123165627.492259-9-u.kleine-koenig@pengutronix.de Signed-off-by: Lee Jones --- drivers/mfd/mcp-sa11x0.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/mfd/mcp-sa11x0.c b/drivers/mfd/mcp-sa11x0.c index 1c9831b78cf9..3883e472b739 100644 --- a/drivers/mfd/mcp-sa11x0.c +++ b/drivers/mfd/mcp-sa11x0.c @@ -232,7 +232,7 @@ static int mcp_sa11x0_probe(struct platform_device *dev) return ret; } -static int mcp_sa11x0_remove(struct platform_device *dev) +static void mcp_sa11x0_remove(struct platform_device *dev) { struct mcp *mcp = platform_get_drvdata(dev); struct mcp_sa11x0 *m = priv(mcp); @@ -251,8 +251,6 @@ static int mcp_sa11x0_remove(struct platform_device *dev) mcp_host_free(mcp); release_mem_region(mem1->start, resource_size(mem1)); release_mem_region(mem0->start, resource_size(mem0)); - - return 0; } static int mcp_sa11x0_suspend(struct device *dev) @@ -288,7 +286,7 @@ static const struct dev_pm_ops mcp_sa11x0_pm_ops = { static struct platform_driver mcp_sa11x0_driver = { .probe = mcp_sa11x0_probe, - .remove = mcp_sa11x0_remove, + .remove_new = mcp_sa11x0_remove, .driver = { .name = DRIVER_NAME, .pm = pm_sleep_ptr(&mcp_sa11x0_pm_ops),