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drm/imagination: Convert to platform remove callback returning void

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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.

Reviewed-by: Matt Coster <matt.coster@imgtec.com>
Acked-by: Matt Coster <matt.coster@imgtec.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/4cf10e420863f40a268f26b9bdb0c4b53dbf3406.1712681770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König 2024-04-09 19:02:48 +02:00
parent 1cb394e644
commit bf9ca9f369
1 changed files with 2 additions and 5 deletions
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7
drivers/gpu/drm/imagination/pvr_drv.c
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@ -1451,8 +1451,7 @@ err_context_fini:
return err;
}
static int
pvr_remove(struct platform_device *plat_dev)
static void pvr_remove(struct platform_device *plat_dev)
{
struct drm_device *drm_dev = platform_get_drvdata(plat_dev);
struct pvr_device *pvr_dev = to_pvr_device(drm_dev);
@ -1469,8 +1468,6 @@ pvr_remove(struct platform_device *plat_dev)
pvr_watchdog_fini(pvr_dev);
pvr_queue_device_fini(pvr_dev);
pvr_context_device_fini(pvr_dev);
return 0;
}
static const struct of_device_id dt_match[] = {
@ -1485,7 +1482,7 @@ static const struct dev_pm_ops pvr_pm_ops = {
static struct platform_driver pvr_driver = {
.probe = pvr_probe,
.remove = pvr_remove,
.remove_new = pvr_remove,
.driver = {
.name = PVR_DRIVER_NAME,
.pm = &pvr_pm_ops,