[PATCH 42/49] mtd: rawnand: sh_flctl: Convert to platform remove callback returning void

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Sat Apr 1 09:19:31 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/sh_flctl.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/nand/raw/sh_flctl.c b/drivers/mtd/nand/raw/sh_flctl.c
index a278829469d6..63bf20c41719 100644
--- a/drivers/mtd/nand/raw/sh_flctl.c
+++ b/drivers/mtd/nand/raw/sh_flctl.c
@@ -1203,7 +1203,7 @@ static int flctl_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int flctl_remove(struct platform_device *pdev)
+static void flctl_remove(struct platform_device *pdev)
 {
 	struct sh_flctl *flctl = platform_get_drvdata(pdev);
 	struct nand_chip *chip = &flctl->chip;
@@ -1214,12 +1214,10 @@ static int flctl_remove(struct platform_device *pdev)
 	WARN_ON(ret);
 	nand_cleanup(chip);
 	pm_runtime_disable(&pdev->dev);
-
-	return 0;
 }
 
 static struct platform_driver flctl_driver = {
-	.remove		= flctl_remove,
+	.remove_new	= flctl_remove,
 	.driver = {
 		.name	= "sh_flctl",
 		.of_match_table = of_flctl_match,
-- 
2.39.2




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