EDAC/highbank_mc: 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 ignored (apart
from emitting a warning) 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. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

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>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Link: https://lore.kernel.org/r/20231004131254.2673842-10-u.kleine-koenig@pengutronix.de

diff --git a/drivers/edac/highbank_mc_edac.c b/drivers/edac/highbank_mc_edac.c
index a0c04a7f95e91f89f3f0046d03fd982cfb63fa84..1c5b888ab11de3598f6b334c7b2cf2d401751c9f 100644 (file)
--- a/drivers/edac/highbank_mc_edac.c
+++ b/drivers/edac/highbank_mc_edac.c
@@ -251,18 +251,17 @@ free:
        return res;
 }
 
-static int highbank_mc_remove(struct platform_device *pdev)
+static void highbank_mc_remove(struct platform_device *pdev)
 {
        struct mem_ctl_info *mci = platform_get_drvdata(pdev);
 
        edac_mc_del_mc(&pdev->dev);
        edac_mc_free(mci);
-       return 0;
 }
 
 static struct platform_driver highbank_mc_edac_driver = {
        .probe = highbank_mc_probe,
-       .remove = highbank_mc_remove,
+       .remove_new = highbank_mc_remove,
        .driver = {
                .name = "hb_mc_edac",
                .of_match_table = hb_ddr_ctrl_of_match,