[PATCH 18/49] mtd: rawnand: gpmi: Convert to platform remove callback returning void

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Sat Apr 1 09:19:07 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/gpmi-nand/gpmi-nand.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
index ada83344b0f9..500e7a28d2e4 100644
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
@@ -2777,7 +2777,7 @@ static int gpmi_nand_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int gpmi_nand_remove(struct platform_device *pdev)
+static void gpmi_nand_remove(struct platform_device *pdev)
 {
 	struct gpmi_nand_data *this = platform_get_drvdata(pdev);
 	struct nand_chip *chip = &this->nand;
@@ -2791,7 +2791,6 @@ static int gpmi_nand_remove(struct platform_device *pdev)
 	nand_cleanup(chip);
 	gpmi_free_dma_buffer(this);
 	release_resources(this);
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -2860,7 +2859,7 @@ static struct platform_driver gpmi_nand_driver = {
 		.of_match_table = gpmi_nand_id_table,
 	},
 	.probe   = gpmi_nand_probe,
-	.remove  = gpmi_nand_remove,
+	.remove_new = gpmi_nand_remove,
 };
 module_platform_driver(gpmi_nand_driver);
 
-- 
2.39.2




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