media: atmel-isi: 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 (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>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/media/platform/atmel/atmel-isi.c b/drivers/media/platform/atmel/atmel-isi.c
index 4d15814e4481c5d442975ed408e7ba696992834c..b063f980f9e0236fa483eabba086943c491a42e0 100644 (file)
--- a/drivers/media/platform/atmel/atmel-isi.c
+++ b/drivers/media/platform/atmel/atmel-isi.c
@@ -1317,7 +1317,7 @@ err_vdev_alloc:
        return ret;
 }
 
-static int atmel_isi_remove(struct platform_device *pdev)
+static void atmel_isi_remove(struct platform_device *pdev)
 {
        struct atmel_isi *isi = platform_get_drvdata(pdev);
 
@@ -1329,8 +1329,6 @@ static int atmel_isi_remove(struct platform_device *pdev)
        v4l2_async_nf_unregister(&isi->notifier);
        v4l2_async_nf_cleanup(&isi->notifier);
        v4l2_device_unregister(&isi->v4l2_dev);
-
-       return 0;
 }
 
 #ifdef CONFIG_PM
@@ -1368,7 +1366,7 @@ static struct platform_driver atmel_isi_driver = {
                .pm     = &atmel_isi_dev_pm_ops,
        },
        .probe          = atmel_isi_probe,
-       .remove         = atmel_isi_remove,
+       .remove_new     = atmel_isi_remove,
 };
 
 module_platform_driver(atmel_isi_driver);