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Subject: media: staging: media: starfive: camss: Convert to platform remove callback returning void Author: Uwe Kleine-König <[email protected]> Date: Fri Mar 8 09:51:16 2024 +0100 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 ignored (apart from emitting a warning) 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. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <[email protected]> Reviewed-by: Changhuang Liang <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> drivers/staging/media/starfive/camss/stf-camss.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) --- diff --git a/drivers/staging/media/starfive/camss/stf-camss.c b/drivers/staging/media/starfive/camss/stf-camss.c index a587f860101a..f9613c2c9dfe 100644 --- a/drivers/staging/media/starfive/camss/stf-camss.c +++ b/drivers/staging/media/starfive/camss/stf-camss.c @@ -355,7 +355,7 @@ err_cleanup_notifier: * * Always returns 0. */ -static int stfcamss_remove(struct platform_device *pdev) +static void stfcamss_remove(struct platform_device *pdev) { struct stfcamss *stfcamss = platform_get_drvdata(pdev); @@ -364,8 +364,6 @@ static int stfcamss_remove(struct platform_device *pdev) media_device_cleanup(&stfcamss->media_dev); v4l2_async_nf_cleanup(&stfcamss->notifier); pm_runtime_disable(&pdev->dev); - - return 0; } static const struct of_device_id stfcamss_of_match[] = { @@ -420,7 +418,7 @@ static const struct dev_pm_ops stfcamss_pm_ops = { static struct platform_driver stfcamss_driver = { .probe = stfcamss_probe, - .remove = stfcamss_remove, + .remove_new = stfcamss_remove, .driver = { .name = "starfive-camss", .pm = &stfcamss_pm_ops,
