| Message ID | 20230403154014.2564054-9-u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | staging: Convert to platform remove callback returning void | expand |
On Mo, 2023-04-03 at 17:39 +0200, Uwe Kleine-König wrote: > 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> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> regards Philipp
diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c index 44d87fe30d52..097171bb930d 100644 --- a/drivers/staging/media/imx/imx-media-csi.c +++ b/drivers/staging/media/imx/imx-media-csi.c @@ -2041,7 +2041,7 @@ static int imx_csi_probe(struct platform_device *pdev) return ret; } -static int imx_csi_remove(struct platform_device *pdev) +static void imx_csi_remove(struct platform_device *pdev) { struct v4l2_subdev *sd = platform_get_drvdata(pdev); struct csi_priv *priv = sd_to_dev(sd); @@ -2052,8 +2052,6 @@ static int imx_csi_remove(struct platform_device *pdev) v4l2_async_nf_cleanup(&priv->notifier); v4l2_async_unregister_subdev(sd); media_entity_cleanup(&sd->entity); - - return 0; } static const struct platform_device_id imx_csi_ids[] = { @@ -2064,7 +2062,7 @@ MODULE_DEVICE_TABLE(platform, imx_csi_ids); static struct platform_driver imx_csi_driver = { .probe = imx_csi_probe, - .remove = imx_csi_remove, + .remove_new = imx_csi_remove, .id_table = imx_csi_ids, .driver = { .name = "imx-ipuv3-csi",
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/imx/imx-media-csi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)