[07/21] EDAC/dmc520: Convert to platform remove callback returning void

Commit Message

Uwe Kleine-König Oct. 4, 2023, 1:12 p.m. UTC

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 <[e-mail]>
---
 drivers/edac/dmc520_edac.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Patch

diff --git a/drivers/edac/dmc520_edac.c b/drivers/edac/dmc520_edac.c
index 1fa5ca57e9ec..4e30b989a1a4 100644
--- a/drivers/edac/dmc520_edac.c
+++ b/drivers/edac/dmc520_edac.c
@@ -602,7 +602,7 @@  static int dmc520_edac_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int dmc520_edac_remove(struct platform_device *pdev)
+static void dmc520_edac_remove(struct platform_device *pdev)
 {
 	u32 reg_val, idx, irq_mask_all = 0;
 	struct mem_ctl_info *mci;
@@ -626,8 +626,6 @@  static int dmc520_edac_remove(struct platform_device *pdev)
 
 	edac_mc_del_mc(&pdev->dev);
 	edac_mc_free(mci);
-
-	return 0;
 }
 
 static const struct of_device_id dmc520_edac_driver_id[] = {
@@ -644,7 +642,7 @@  static struct platform_driver dmc520_edac_driver = {
 	},
 
 	.probe = dmc520_edac_probe,
-	.remove = dmc520_edac_remove
+	.remove_new = dmc520_edac_remove
 };
 
 module_platform_driver(dmc520_edac_driver);