crypto: s5p-sss - 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>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index fe8cf9ba8005c3d482b54b6f09b3580a8588ef2d..9c02046971e35ba2092ed6007a14768dcd48fb72 100644 (file)
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -2315,7 +2315,7 @@ err_clk:
        return err;
 }
 
-static int s5p_aes_remove(struct platform_device *pdev)
+static void s5p_aes_remove(struct platform_device *pdev)
 {
        struct s5p_aes_dev *pdata = platform_get_drvdata(pdev);
        int i;
@@ -2337,13 +2337,11 @@ static int s5p_aes_remove(struct platform_device *pdev)
 
        clk_disable_unprepare(pdata->clk);
        s5p_dev = NULL;
-
-       return 0;
 }
 
 static struct platform_driver s5p_aes_crypto = {
        .probe  = s5p_aes_probe,
-       .remove = s5p_aes_remove,
+       .remove_new = s5p_aes_remove,
        .driver = {
                .name   = "s5p-secss",
                .of_match_table = s5p_sss_dt_match,