[PATCH 49/49] mtd: rawnand: xway: Convert to platform remove callback returning void

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Sat Apr 1 09:19:38 PDT 2023


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 at pengutronix.de>
---
 drivers/mtd/nand/raw/xway_nand.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/nand/raw/xway_nand.c b/drivers/mtd/nand/raw/xway_nand.c
index 035b82aa2f4a..6b1e2a2bba15 100644
--- a/drivers/mtd/nand/raw/xway_nand.c
+++ b/drivers/mtd/nand/raw/xway_nand.c
@@ -238,7 +238,7 @@ static int xway_nand_probe(struct platform_device *pdev)
 /*
  * Remove a NAND device.
  */
-static int xway_nand_remove(struct platform_device *pdev)
+static void xway_nand_remove(struct platform_device *pdev)
 {
 	struct xway_nand_data *data = platform_get_drvdata(pdev);
 	struct nand_chip *chip = &data->chip;
@@ -247,8 +247,6 @@ static int xway_nand_remove(struct platform_device *pdev)
 	ret = mtd_device_unregister(nand_to_mtd(chip));
 	WARN_ON(ret);
 	nand_cleanup(chip);
-
-	return 0;
 }
 
 static const struct of_device_id xway_nand_match[] = {
@@ -258,7 +256,7 @@ static const struct of_device_id xway_nand_match[] = {
 
 static struct platform_driver xway_nand_driver = {
 	.probe	= xway_nand_probe,
-	.remove	= xway_nand_remove,
+	.remove_new = xway_nand_remove,
 	.driver	= {
 		.name		= "lantiq,nand-xway",
 		.of_match_table = xway_nand_match,
-- 
2.39.2




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