[040/117] media: imx7-media-csi: Convert to platform remove callback returning void

Commit Message

Uwe Kleine-König March 26, 2023, 2:31 p.m. UTC

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 <[e-mail]>
---
 drivers/media/platform/nxp/imx7-media-csi.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Patch

diff --git a/drivers/media/platform/nxp/imx7-media-csi.c b/drivers/media/platform/nxp/imx7-media-csi.c
index c22bf5c827e7..9ee46c17bd02 100644
--- a/drivers/media/platform/nxp/imx7-media-csi.c
+++ b/drivers/media/platform/nxp/imx7-media-csi.c
@@ -2278,7 +2278,7 @@  static int imx7_csi_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int imx7_csi_remove(struct platform_device *pdev)
+static void imx7_csi_remove(struct platform_device *pdev)
 {
 	struct imx7_csi *csi = platform_get_drvdata(pdev);
 
@@ -2287,8 +2287,6 @@  static int imx7_csi_remove(struct platform_device *pdev)
 	v4l2_async_nf_unregister(&csi->notifier);
 	v4l2_async_nf_cleanup(&csi->notifier);
 	v4l2_async_unregister_subdev(&csi->sd);
-
-	return 0;
 }
 
 static const struct of_device_id imx7_csi_of_match[] = {
@@ -2301,7 +2299,7 @@  MODULE_DEVICE_TABLE(of, imx7_csi_of_match);
 
 static struct platform_driver imx7_csi_driver = {
 	.probe = imx7_csi_probe,
-	.remove = imx7_csi_remove,
+	.remove_new = imx7_csi_remove,
 	.driver = {
 		.of_match_table = imx7_csi_of_match,
 		.name = "imx7-csi",