HSI: omap_ssi_port: 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>
Link: https://lore.kernel.org/r/11e06f4cce041436bd63fb24361f3cee06bd2d59.1712756364.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

diff --git a/drivers/hsi/controllers/omap_ssi_port.c b/drivers/hsi/controllers/omap_ssi_port.c
index c78d9c9f73712c9e8bfee0718115eb87fdacf509..f0b3eca7376e44bb778c3cd7596ffdda44eb64b0 100644 (file)
--- a/drivers/hsi/controllers/omap_ssi_port.c
+++ b/drivers/hsi/controllers/omap_ssi_port.c
@@ -1224,7 +1224,7 @@ error:
        return err;
 }
 
-static int ssi_port_remove(struct platform_device *pd)
+static void ssi_port_remove(struct platform_device *pd)
 {
        struct hsi_port *port = platform_get_drvdata(pd);
        struct omap_ssi_port *omap_port = hsi_port_drvdata(port);
@@ -1251,8 +1251,6 @@ static int ssi_port_remove(struct platform_device *pd)
 
        pm_runtime_dont_use_autosuspend(&pd->dev);
        pm_runtime_disable(&pd->dev);
-
-       return 0;
 }
 
 static int ssi_restore_divisor(struct omap_ssi_port *omap_port)
@@ -1387,7 +1385,7 @@ MODULE_DEVICE_TABLE(of, omap_ssi_port_of_match);
 
 struct platform_driver ssi_port_pdriver = {
        .probe = ssi_port_probe,
-       .remove = ssi_port_remove,
+       .remove_new = ssi_port_remove,
        .driver = {
                .name   = "omap_ssi_port",
                .of_match_table = omap_ssi_port_of_match,