diff mbox series

[11/12] mailbox: tegra-hsp: Convert to platform remove callback returning void

Message ID 8e00bbc23e1115d9ff185d4b98c6d764607036df.1703710628.git.u.kleine-koenig@pengutronix.de
State Handled Elsewhere
Headers show
Series mailbox: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König Dec. 27, 2023, 9:02 p.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 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 <u.kleine-koenig@pengutronix.de>
---
 drivers/mailbox/tegra-hsp.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/mailbox/tegra-hsp.c b/drivers/mailbox/tegra-hsp.c
index fe29fc2ca526..19ef56cbcfd3 100644
--- a/drivers/mailbox/tegra-hsp.c
+++ b/drivers/mailbox/tegra-hsp.c
@@ -868,13 +868,11 @@  static int tegra_hsp_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int tegra_hsp_remove(struct platform_device *pdev)
+static void tegra_hsp_remove(struct platform_device *pdev)
 {
 	struct tegra_hsp *hsp = platform_get_drvdata(pdev);
 
 	lockdep_unregister_key(&hsp->lock_key);
-
-	return 0;
 }
 
 static int __maybe_unused tegra_hsp_resume(struct device *dev)
@@ -953,7 +951,7 @@  static struct platform_driver tegra_hsp_driver = {
 		.pm = &tegra_hsp_pm_ops,
 	},
 	.probe = tegra_hsp_probe,
-	.remove = tegra_hsp_remove,
+	.remove_new = tegra_hsp_remove,
 };
 
 static int __init tegra_hsp_init(void)