diff mbox series

[v2,10/12] drm/shmobile: Convert to platform remove callback returning void

Message ID 20230801110239.831099-11-u.kleine-koenig@pengutronix.de (mailing list archive)
State Mainlined
Commit 775b0669e19f2e4ad979e38330b7d23c2405cadd
Delegated to: Kieran Bingham
Headers show
Series drm: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König Aug. 1, 2023, 11:02 a.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.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jyri Sarha <jyri.sarha@iki.fi>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
index 30493ce87419..e5db4e0095ba 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
@@ -172,7 +172,7 @@  static DEFINE_SIMPLE_DEV_PM_OPS(shmob_drm_pm_ops,
  * Platform driver
  */
 
-static int shmob_drm_remove(struct platform_device *pdev)
+static void shmob_drm_remove(struct platform_device *pdev)
 {
 	struct shmob_drm_device *sdev = platform_get_drvdata(pdev);
 	struct drm_device *ddev = sdev->ddev;
@@ -181,8 +181,6 @@  static int shmob_drm_remove(struct platform_device *pdev)
 	drm_kms_helper_poll_fini(ddev);
 	free_irq(sdev->irq, ddev);
 	drm_dev_put(ddev);
-
-	return 0;
 }
 
 static int shmob_drm_probe(struct platform_device *pdev)
@@ -288,7 +286,7 @@  static int shmob_drm_probe(struct platform_device *pdev)
 
 static struct platform_driver shmob_drm_platform_driver = {
 	.probe		= shmob_drm_probe,
-	.remove		= shmob_drm_remove,
+	.remove_new	= shmob_drm_remove,
 	.driver		= {
 		.name	= "shmob-drm",
 		.pm	= pm_sleep_ptr(&shmob_drm_pm_ops),