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

Message ID 322bdb682c4bbcdbe14fef0689851466b631f752.1708627599.git.u.kleine-koenig@pengutronix.de
State Accepted
Commit 74550b070d0b40f5b9aaa8c1161e7b587e391289
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/pfr_update.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/acpi/pfr_update.c b/drivers/acpi/pfr_update.c
index 98267f163e2b..8b2910995fc1 100644
--- a/drivers/acpi/pfr_update.c
+++ b/drivers/acpi/pfr_update.c
@@ -489,13 +489,11 @@  static const struct file_operations acpi_pfru_fops = {
 	.llseek		= noop_llseek,
 };
 
-static int acpi_pfru_remove(struct platform_device *pdev)
+static void acpi_pfru_remove(struct platform_device *pdev)
 {
 	struct pfru_device *pfru_dev = platform_get_drvdata(pdev);
 
 	misc_deregister(&pfru_dev->miscdev);
-
-	return 0;
 }
 
 static void pfru_put_idx(void *data)
@@ -567,7 +565,7 @@  static struct platform_driver acpi_pfru_driver = {
 		.acpi_match_table = acpi_pfru_ids,
 	},
 	.probe = acpi_pfru_probe,
-	.remove = acpi_pfru_remove,
+	.remove_new = acpi_pfru_remove,
 };
 module_platform_driver(acpi_pfru_driver);