spmi: mtk-pmif: 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.

Link: https://lore.kernel.org/r/20230306073446.2194048-3-u.kleine-koenig@pengutronix.de
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20230413223834.4084793-3-sboyd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/spmi/spmi-mtk-pmif.c b/drivers/spmi/spmi-mtk-pmif.c
index ad511f2..fbcb392 100644 (file)
--- a/drivers/spmi/spmi-mtk-pmif.c
+++ b/drivers/spmi/spmi-mtk-pmif.c
@@ -503,7 +503,7 @@ err_put_ctrl:
        return err;
 }
 
-static int mtk_spmi_remove(struct platform_device *pdev)
+static void mtk_spmi_remove(struct platform_device *pdev)
 {
        struct spmi_controller *ctrl = platform_get_drvdata(pdev);
        struct pmif *arb = spmi_controller_get_drvdata(ctrl);
@@ -511,7 +511,6 @@ static int mtk_spmi_remove(struct platform_device *pdev)
        clk_bulk_disable_unprepare(arb->nclks, arb->clks);
        spmi_controller_remove(ctrl);
        spmi_controller_put(ctrl);
-       return 0;
 }
 
 static const struct of_device_id mtk_spmi_match_table[] = {
@@ -533,7 +532,7 @@ static struct platform_driver mtk_spmi_driver = {
                .of_match_table = of_match_ptr(mtk_spmi_match_table),
        },
        .probe          = mtk_spmi_probe,
-       .remove         = mtk_spmi_remove,
+       .remove_new     = mtk_spmi_remove,
 };
 module_platform_driver(mtk_spmi_driver);