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[2/3] Bluetooth: hci_bcm: Convert to platform remove callback returning void

Message ID 75fe619ff30d0d974492c70f3bab032ddafb4d95.1710193561.git.u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit 526f6c35de830e8d6fc3aa7c479321ad0bcfb676
Headers show
Series Bluetooth: Convert to platform remove callback returning void | expand

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tedd_an/pre-ci_am success Success
tedd_an/CheckPatch success CheckPatch PASS
tedd_an/GitLint success Gitlint PASS
tedd_an/SubjectPrefix success Gitlint PASS
tedd_an/IncrementalBuild success Incremental Build PASS

Commit Message

Uwe Kleine-König March 11, 2024, 9:49 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/bluetooth/hci_bcm.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index 874d23089b39..3a227f73c063 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -1293,7 +1293,7 @@  static int bcm_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int bcm_remove(struct platform_device *pdev)
+static void bcm_remove(struct platform_device *pdev)
 {
 	struct bcm_device *dev = platform_get_drvdata(pdev);
 
@@ -1302,8 +1302,6 @@  static int bcm_remove(struct platform_device *pdev)
 	mutex_unlock(&bcm_device_lock);
 
 	dev_info(&pdev->dev, "%s device unregistered.\n", dev->name);
-
-	return 0;
 }
 
 static const struct hci_uart_proto bcm_proto = {
@@ -1509,7 +1507,7 @@  static const struct dev_pm_ops bcm_pm_ops = {
 
 static struct platform_driver bcm_driver = {
 	.probe = bcm_probe,
-	.remove = bcm_remove,
+	.remove_new = bcm_remove,
 	.driver = {
 		.name = "hci_bcm",
 		.acpi_match_table = ACPI_PTR(bcm_acpi_match),