ptp: fc3: 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: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240304091325.717546-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/ptp/ptp_fc3.c b/drivers/ptp/ptp_fc3.c
index 0e2286ba088a02f3d26ef2d5e60009a5b0cca857..6ef982862e27d7e3647e7ba5379e4a9d2d5699b4 100644 (file)
--- a/drivers/ptp/ptp_fc3.c
+++ b/drivers/ptp/ptp_fc3.c
@@ -996,13 +996,11 @@ static int idtfc3_probe(struct platform_device *pdev)
        return 0;
 }
 
-static int idtfc3_remove(struct platform_device *pdev)
+static void idtfc3_remove(struct platform_device *pdev)
 {
        struct idtfc3 *idtfc3 = platform_get_drvdata(pdev);
 
        ptp_clock_unregister(idtfc3->ptp_clock);
-
-       return 0;
 }
 
 static struct platform_driver idtfc3_driver = {
@@ -1010,7 +1008,7 @@ static struct platform_driver idtfc3_driver = {
                .name = "rc38xxx-phc",
        },
        .probe = idtfc3_probe,
-       .remove = idtfc3_remove,
+       .remove_new = idtfc3_remove,
 };
 
 module_platform_driver(idtfc3_driver);