linux-kernel - [PATCH 18/30] clk: keystone: Convert to platform remove callback returning void

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Message-Id: <20230312161512.2715500-19-u.kleine-koenig@pengutronix.de>
Date:   Sun, 12 Mar 2023 17:15:00 +0100
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Nishanth Menon <nm@...com>, Tero Kristo <kristo@...nel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: [PATCH 18/30] clk: keystone: 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/keystone/sci-clk.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/keystone/sci-clk.c b/drivers/clk/keystone/sci-clk.c
index d4b4e74e22da..910ecd58c4ca 100644
--- a/drivers/clk/keystone/sci-clk.c
+++ b/drivers/clk/keystone/sci-clk.c
@@ -689,16 +689,14 @@ static int ti_sci_clk_probe(struct platform_device *pdev)
  * via common clock framework. Any memory allocated for the device will
  * be free'd silently via the devm framework. Returns 0 always.
  */
-static int ti_sci_clk_remove(struct platform_device *pdev)
+static void ti_sci_clk_remove(struct platform_device *pdev)
 {
 	of_clk_del_provider(pdev->dev.of_node);
-
-	return 0;
 }
 
 static struct platform_driver ti_sci_clk_driver = {
 	.probe = ti_sci_clk_probe,
-	.remove = ti_sci_clk_remove,
+	.remove_new = ti_sci_clk_remove,
 	.driver = {
 		.name = "ti-sci-clk",
 		.of_match_table = of_match_ptr(ti_sci_clk_of_match),
-- 
2.39.1