crypto: intel/keembay-ocs-ecc - 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/intel/keembay/keembay-ocs-ecc.c b/drivers/crypto/intel/keembay/keembay-ocs-ecc.c
index fb95deed9057a2cf38af55d44452c3ddc761e80e..5e24f2d8affc6319d98c256e52b0cf4468436035 100644 (file)
--- a/drivers/crypto/intel/keembay/keembay-ocs-ecc.c
+++ b/drivers/crypto/intel/keembay/keembay-ocs-ecc.c
@@ -964,7 +964,7 @@ list_del:
        return rc;
 }
 
-static int kmb_ocs_ecc_remove(struct platform_device *pdev)
+static void kmb_ocs_ecc_remove(struct platform_device *pdev)
 {
        struct ocs_ecc_dev *ecc_dev;
 
@@ -978,8 +978,6 @@ static int kmb_ocs_ecc_remove(struct platform_device *pdev)
        spin_unlock(&ocs_ecc.lock);
 
        crypto_engine_exit(ecc_dev->engine);
-
-       return 0;
 }
 
 /* Device tree driver match. */
@@ -993,7 +991,7 @@ static const struct of_device_id kmb_ocs_ecc_of_match[] = {
 /* The OCS driver is a platform device. */
 static struct platform_driver kmb_ocs_ecc_driver = {
        .probe = kmb_ocs_ecc_probe,
-       .remove = kmb_ocs_ecc_remove,
+       .remove_new = kmb_ocs_ecc_remove,
        .driver = {
                        .name = DRV_NAME,
                        .of_match_table = kmb_ocs_ecc_of_match,