crypto: sa2ul - 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: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/sa2ul.c b/drivers/crypto/sa2ul.c
index 6238d34f8db2f6dd478d907331726d301a6977e3..6846a84295745e75867a91c31abe0ebe9c7d5981 100644 (file)
--- a/drivers/crypto/sa2ul.c
+++ b/drivers/crypto/sa2ul.c
@@ -2468,7 +2468,7 @@ destroy_dma_pool:
        return ret;
 }
 
-static int sa_ul_remove(struct platform_device *pdev)
+static void sa_ul_remove(struct platform_device *pdev)
 {
        struct sa_crypto_data *dev_data = platform_get_drvdata(pdev);
 
@@ -2486,13 +2486,11 @@ static int sa_ul_remove(struct platform_device *pdev)
 
        pm_runtime_put_sync(&pdev->dev);
        pm_runtime_disable(&pdev->dev);
-
-       return 0;
 }
 
 static struct platform_driver sa_ul_driver = {
        .probe = sa_ul_probe,
-       .remove = sa_ul_remove,
+       .remove_new = sa_ul_remove,
        .driver = {
                   .name = "saul-crypto",
                   .of_match_table = of_match,