EDAC/altera: 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>
Link: https://lore.kernel.org/r/20231004131254.2673842-2-u.kleine-koenig@pengutronix.de

diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c
index 541acf5eba05450eca02ca9026afbdf7589bee05..ae17ce4d972267959d4e297756b3b8be3991d216 100644 (file)
--- a/drivers/edac/altera_edac.c
+++ b/drivers/edac/altera_edac.c
@@ -454,15 +454,13 @@ free:
        return res;
 }
 
-static int altr_sdram_remove(struct platform_device *pdev)
+static void altr_sdram_remove(struct platform_device *pdev)
 {
        struct mem_ctl_info *mci = platform_get_drvdata(pdev);
 
        edac_mc_del_mc(&pdev->dev);
        edac_mc_free(mci);
        platform_set_drvdata(pdev, NULL);
-
-       return 0;
 }
 
 /*
@@ -484,7 +482,7 @@ static const struct dev_pm_ops altr_sdram_pm_ops = {
 
 static struct platform_driver altr_sdram_edac_driver = {
        .probe = altr_sdram_probe,
-       .remove = altr_sdram_remove,
+       .remove_new = altr_sdram_remove,
        .driver = {
                .name = "altr_sdram_edac",
 #ifdef CONFIG_PM
@@ -807,7 +805,7 @@ fail:
        return res;
 }
 
-static int altr_edac_device_remove(struct platform_device *pdev)
+static void altr_edac_device_remove(struct platform_device *pdev)
 {
        struct edac_device_ctl_info *dci = platform_get_drvdata(pdev);
        struct altr_edac_device_dev *drvdata = dci->pvt_info;
@@ -815,13 +813,11 @@ static int altr_edac_device_remove(struct platform_device *pdev)
        debugfs_remove_recursive(drvdata->debugfs_dir);
        edac_device_del_device(&pdev->dev);
        edac_device_free_ctl_info(dci);
-
-       return 0;
 }
 
 static struct platform_driver altr_edac_device_driver = {
        .probe =  altr_edac_device_probe,
-       .remove = altr_edac_device_remove,
+       .remove_new = altr_edac_device_remove,
        .driver = {
                .name = "altr_edac_device",
                .of_match_table = altr_edac_device_of_match,