[PATCH 13/24] staging: media: omap4iss: Convert to platform remove callback returning void

Uwe Kleine-König
2023-04-03T15:40:27Z

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/omap4iss/iss.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c
index fa2a36d829d3..0c4283bb48ad 100644
--- a/drivers/staging/media/omap4iss/iss.c
+++ b/drivers/staging/media/omap4iss/iss.c
@@ -1323,15 +1323,13 @@ static int iss_probe(struct platform_device *pdev)
return ret;
}

-static int iss_remove(struct platform_device *pdev)
+static void iss_remove(struct platform_device *pdev)
{
struct iss_device *iss = platform_get_drvdata(pdev);

iss_unregister_entities(iss);
media_entity_enum_cleanup(&iss->crashed);
iss_cleanup_modules(iss);
-
- return 0;
}

static const struct platform_device_id omap4iss_id_table[] = {
@@ -1342,7 +1340,7 @@ MODULE_DEVICE_TABLE(platform, omap4iss_id_table);

static struct platform_driver iss_driver = {
.probe = iss_probe,
- .remove = iss_remove,
+ .remove_new = iss_remove,
.id_table = omap4iss_id_table,
.driver = {
.name = "omap4iss",
--
2.39.2