clk: scpi: 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@pengutronix.de>
Link: https://lore.kernel.org/r/20230312161512.2715500-16-u.kleine-koenig@pengutronix.de
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: Uwe Kleine-König

drivers/clk/clk-scpi.c

@@ -246,7 +246,7 @@ static int scpi_clk_add(struct device *dev, struct device_node *np,
 	return of_clk_add_hw_provider(np, scpi_of_clk_src_get, clk_data);
 }
 
-static int scpi_clocks_remove(struct platform_device *pdev)
+static void scpi_clocks_remove(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *child, *np = dev->of_node;
@@ -258,7 +258,6 @@ static int scpi_clocks_remove(struct platform_device *pdev)
 
 	for_each_available_child_of_node(np, child)
 		of_clk_del_provider(np);
-	return 0;
 }
 
 static int scpi_clocks_probe(struct platform_device *pdev)
@@ -305,7 +304,7 @@ static struct platform_driver scpi_clocks_driver = {
 		.of_match_table = scpi_clocks_ids,
 	},
 	.probe = scpi_clocks_probe,
-	.remove = scpi_clocks_remove,
+	.remove_new = scpi_clocks_remove,
 };
 module_platform_driver(scpi_clocks_driver);