usb: musb: mpfs: 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>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230405141009.3400693-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/musb/mpfs.c b/drivers/usb/musb/mpfs.c
index cea2e8108867f322812f9f1882be91bbb2b7d47b..24b98716f7fce29a98c7ead73ca81600ece0be72 100644 (file)
--- a/drivers/usb/musb/mpfs.c
+++ b/drivers/usb/musb/mpfs.c
@@ -235,15 +235,13 @@ err_phy_release:
        return ret;
 }
 
-static int mpfs_remove(struct platform_device *pdev)
+static void mpfs_remove(struct platform_device *pdev)
 {
        struct mpfs_glue *glue = platform_get_drvdata(pdev);
 
        clk_disable_unprepare(glue->clk);
        platform_device_unregister(glue->musb);
        usb_phy_generic_unregister(pdev);
-
-       return 0;
 }
 
 #ifdef CONFIG_OF
@@ -256,7 +254,7 @@ MODULE_DEVICE_TABLE(of, mpfs_id_table);
 
 static struct platform_driver mpfs_musb_driver = {
        .probe = mpfs_probe,
-       .remove = mpfs_remove,
+       .remove_new = mpfs_remove,
        .driver = {
                .name = "mpfs-musb",
                .of_match_table = of_match_ptr(mpfs_id_table)