[PATCH 06/24] staging: media: atmel-sama5d2-isc: Convert to platform remove callback returning void

Uwe Kleine-König
2023-04-03T15:41:37Z

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 (mostly) ignored
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.

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>
---
drivers/staging/media/deprecated/atmel/atmel-sama5d2-isc.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/deprecated/atmel/atmel-sama5d2-isc.c b/drivers/staging/media/deprecated/atmel/atmel-sama5d2-isc.c
index ba0614f981a2..cc744cea1d0e 100644
--- a/drivers/staging/media/deprecated/atmel/atmel-sama5d2-isc.c
+++ b/drivers/staging/media/deprecated/atmel/atmel-sama5d2-isc.c
@@ -580,7 +580,7 @@ static int atmel_isc_probe(struct platform_device *pdev)
return ret;
}

-static int atmel_isc_remove(struct platform_device *pdev)
+static void atmel_isc_remove(struct platform_device *pdev)
{
struct isc_device *isc = platform_get_drvdata(pdev);

@@ -594,8 +594,6 @@ static int atmel_isc_remove(struct platform_device *pdev)
clk_disable_unprepare(isc->hclock);

atmel_isc_clk_cleanup(isc);
-
- return 0;
}

static int __maybe_unused isc_runtime_suspend(struct device *dev)
@@ -638,7 +636,7 @@ MODULE_DEVICE_TABLE(of, atmel_isc_of_match);

static struct platform_driver atmel_isc_driver = {
.probe = atmel_isc_probe,
- .remove = atmel_isc_remove,
+ .remove_new = atmel_isc_remove,
.driver = {
.name = "atmel-sama5d2-isc",
.pm = &atmel_isc_dev_pm_ops,
--
2.39.2