mtd: maps: sa1100-flash: Convert to platform remove callback returning void

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 <u.kleine-koenig@pengutronix.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/linux-mtd/20231008200143.196369-17-u.kleine-koenig@pengutronix.de

diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c
index d3d4e987c163e23cd5e72acd1a1a2368ff10b0c9..d4ce2376d33f4a1a438c71490a10ee23e82bae5b 100644 (file)
--- a/drivers/mtd/maps/sa1100-flash.c
+++ b/drivers/mtd/maps/sa1100-flash.c
@@ -285,19 +285,17 @@ static int sa1100_mtd_probe(struct platform_device *pdev)
        return err;
 }
 
-static int sa1100_mtd_remove(struct platform_device *pdev)
+static void sa1100_mtd_remove(struct platform_device *pdev)
 {
        struct sa_info *info = platform_get_drvdata(pdev);
        struct flash_platform_data *plat = dev_get_platdata(&pdev->dev);
 
        sa1100_destroy(info, plat);
-
-       return 0;
 }
 
 static struct platform_driver sa1100_mtd_driver = {
        .probe          = sa1100_mtd_probe,
-       .remove         = sa1100_mtd_remove,
+       .remove_new     = sa1100_mtd_remove,
        .driver         = {
                .name   = "sa1100-mtd",
        },