linux-kernel - [PATCH 11/30] clk: hsdk-pll: Convert to platform remove callback returning void

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Message-Id: <20230312161512.2715500-12-u.kleine-koenig@pengutronix.de>
Date:   Sun, 12 Mar 2023 17:14:53 +0100
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 11/30] clk: hsdk-pll: Convert to platform remove callback returning void

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 (mostly) ignored
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.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
---
 drivers/clk/clk-hsdk-pll.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/clk-hsdk-pll.c b/drivers/clk/clk-hsdk-pll.c
index 60007b508590..766e139972fe 100644
--- a/drivers/clk/clk-hsdk-pll.c
+++ b/drivers/clk/clk-hsdk-pll.c
@@ -350,10 +350,9 @@ static int hsdk_pll_clk_probe(struct platform_device *pdev)
 			&pll_clk->hw);
 }
 
-static int hsdk_pll_clk_remove(struct platform_device *pdev)
+static void hsdk_pll_clk_remove(struct platform_device *pdev)
 {
 	of_clk_del_provider(pdev->dev.of_node);
-	return 0;
 }
 
 static void __init of_hsdk_pll_clk_setup(struct device_node *node)
@@ -432,6 +431,6 @@ static struct platform_driver hsdk_pll_clk_driver = {
 		.of_match_table = hsdk_pll_clk_id,
 	},
 	.probe = hsdk_pll_clk_probe,
-	.remove = hsdk_pll_clk_remove,
+	.remove_new = hsdk_pll_clk_remove,
 };
 builtin_platform_driver(hsdk_pll_clk_driver);
-- 
2.39.1