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[1/7] ACPI: TAD: Convert to platform remove callback returning void

Message ID 15600c270b1684c1a24cdd6da5e110d8eac42266.1708627599.git.u.kleine-koenig@pengutronix.de
State Accepted
Commit 9a7897a2b03183f15ea4c7645416daf3ae1f634e
Headers show
Series ACPI: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König Feb. 22, 2024, 6:52 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/acpi/acpi_tad.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/acpi/acpi_tad.c b/drivers/acpi/acpi_tad.c
index 33c3b16af556..1d670dbe4d1d 100644
--- a/drivers/acpi/acpi_tad.c
+++ b/drivers/acpi/acpi_tad.c
@@ -554,7 +554,7 @@  static int acpi_tad_disable_timer(struct device *dev, u32 timer_id)
 	return acpi_tad_wake_set(dev, "_STV", timer_id, ACPI_TAD_WAKE_DISABLED);
 }
 
-static int acpi_tad_remove(struct platform_device *pdev)
+static void acpi_tad_remove(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	acpi_handle handle = ACPI_HANDLE(dev);
@@ -579,7 +579,6 @@  static int acpi_tad_remove(struct platform_device *pdev)
 	pm_runtime_put_sync(dev);
 	pm_runtime_disable(dev);
 	acpi_remove_cmos_rtc_space_handler(handle);
-	return 0;
 }
 
 static int acpi_tad_probe(struct platform_device *pdev)
@@ -684,7 +683,7 @@  static struct platform_driver acpi_tad_driver = {
 		.acpi_match_table = acpi_tad_ids,
 	},
 	.probe = acpi_tad_probe,
-	.remove = acpi_tad_remove,
+	.remove_new = acpi_tad_remove,
 };
 MODULE_DEVICE_TABLE(acpi, acpi_tad_ids);