Thread (10 messages) flat view 10 messages, 2 authors, 2023-07-12
STALE1128d LANDED: 1 (0M)

Revision v3 of 3 in this series; 1 review trailer; landed in mainline as 4be0ebc33f39 on 2023-07-12.

Revisions (3)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 current

[PATCH net-next v3 7/8] net: gianfar: Convert to platform remove callback returning void

From: Uwe Kleine-König <hidden>
Date: 2023-07-10 07:20:00
Subsystem: freescale etsec ethernet driver (gianfar), networking drivers, the rest · Maintainers: Claudiu Manoil, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

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.

Reviewed-by: Michal Kubiak <redacted>
Signed-off-by: Uwe Kleine-König <redacted>
---
 drivers/net/ethernet/freescale/gianfar.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 38d5013c6fed..0c898f9ee358 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -3364,7 +3364,7 @@ static int gfar_probe(struct platform_device *ofdev)
 	return err;
 }
 
-static int gfar_remove(struct platform_device *ofdev)
+static void gfar_remove(struct platform_device *ofdev)
 {
 	struct gfar_private *priv = platform_get_drvdata(ofdev);
 	struct device_node *np = ofdev->dev.of_node;
@@ -3381,8 +3381,6 @@ static int gfar_remove(struct platform_device *ofdev)
 	gfar_free_rx_queues(priv);
 	gfar_free_tx_queues(priv);
 	free_gfar_dev(priv);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
@@ -3642,7 +3640,7 @@ static struct platform_driver gfar_driver = {
 		.of_match_table = gfar_match,
 	},
 	.probe = gfar_probe,
-	.remove = gfar_remove,
+	.remove_new = gfar_remove,
 };
 
 module_platform_driver(gfar_driver);
-- 
2.39.2
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