spi: rockchip-sfc: 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/20230303172041.2103336-59-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-rockchip-sfc.c b/drivers/spi/spi-rockchip-sfc.c
index bd87d3c..80e1ee1 100644 (file)
--- a/drivers/spi/spi-rockchip-sfc.c
+++ b/drivers/spi/spi-rockchip-sfc.c
@@ -656,7 +656,7 @@ err_hclk:
        return ret;
 }
 
-static int rockchip_sfc_remove(struct platform_device *pdev)
+static void rockchip_sfc_remove(struct platform_device *pdev)
 {
        struct spi_master *master = platform_get_drvdata(pdev);
        struct rockchip_sfc *sfc = platform_get_drvdata(pdev);
@@ -665,8 +665,6 @@ static int rockchip_sfc_remove(struct platform_device *pdev)
 
        clk_disable_unprepare(sfc->clk);
        clk_disable_unprepare(sfc->hclk);
-
-       return 0;
 }
 
 static const struct of_device_id rockchip_sfc_dt_ids[] = {
@@ -681,7 +679,7 @@ static struct platform_driver rockchip_sfc_driver = {
                .of_match_table = rockchip_sfc_dt_ids,
        },
        .probe  = rockchip_sfc_probe,
-       .remove = rockchip_sfc_remove,
+       .remove_new = rockchip_sfc_remove,
 };
 module_platform_driver(rockchip_sfc_driver);