| Message ID | 20230507162616.1368908-31-u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Neil Armstrong |
| Headers | show |
| Series | drm: Convert to platform remove callback returning void | expand |
On Sun, May 7, 2023 at 6:26 PM Uwe Kleine-König <u.kleine-koenig@pengutronix.de> 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 meson drm drivers 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: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c index 7caf937c3c90..edaaf9ce5b1a 100644 --- a/drivers/gpu/drm/meson/meson_drv.c +++ b/drivers/gpu/drm/meson/meson_drv.c @@ -500,11 +500,9 @@ static int meson_drv_probe(struct platform_device *pdev) return 0; }; -static int meson_drv_remove(struct platform_device *pdev) +static void meson_drv_remove(struct platform_device *pdev) { component_master_del(&pdev->dev, &meson_drv_master_ops); - - return 0; } static struct meson_drm_match_data meson_drm_gxbb_data = { @@ -544,7 +542,7 @@ static const struct dev_pm_ops meson_drv_pm_ops = { static struct platform_driver meson_drm_platform_driver = { .probe = meson_drv_probe, - .remove = meson_drv_remove, + .remove_new = meson_drv_remove, .shutdown = meson_drv_shutdown, .driver = { .name = "meson-drm", diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c index 3d046878ce6c..411219d53b14 100644 --- a/drivers/gpu/drm/meson/meson_dw_hdmi.c +++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c @@ -852,11 +852,9 @@ static int meson_dw_hdmi_probe(struct platform_device *pdev) return component_add(&pdev->dev, &meson_dw_hdmi_ops); } -static int meson_dw_hdmi_remove(struct platform_device *pdev) +static void meson_dw_hdmi_remove(struct platform_device *pdev) { component_del(&pdev->dev, &meson_dw_hdmi_ops); - - return 0; } static const struct dev_pm_ops meson_dw_hdmi_pm_ops = { @@ -879,7 +877,7 @@ MODULE_DEVICE_TABLE(of, meson_dw_hdmi_of_table); static struct platform_driver meson_dw_hdmi_platform_driver = { .probe = meson_dw_hdmi_probe, - .remove = meson_dw_hdmi_remove, + .remove_new = meson_dw_hdmi_remove, .driver = { .name = DRIVER_NAME, .of_match_table = meson_dw_hdmi_of_table,
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 meson drm drivers 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/gpu/drm/meson/meson_drv.c | 6 ++---- drivers/gpu/drm/meson/meson_dw_hdmi.c | 6 ++---- 2 files changed, 4 insertions(+), 8 deletions(-)