diff mbox series

[net-next,v2,9/9] ieee802154: hwsim: Convert to platform remove callback returning void

Message ID 29b9d8edea7bc03d9726253afcc7259d4dd5d431.1701713943.git.u.kleine-koenig@pengutronix.de (mailing list archive)
State Awaiting Upstream
Delegated to: Netdev Maintainers
Headers show
Series net*: Convert to platform remove callback returning void | expand

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Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1115 this patch: 1115
netdev/cc_maintainers success CCed 8 of 8 maintainers
netdev/build_clang success Errors and warnings before: 1142 this patch: 1142
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 1142 this patch: 1142
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 22 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Uwe Kleine-König Dec. 4, 2023, 6:30 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.

Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Link: https://lore.kernel.org/r/20231117095922.876489-11-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/net/ieee802154/mac802154_hwsim.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ieee802154/mac802154_hwsim.c b/drivers/net/ieee802154/mac802154_hwsim.c
index 31cba9aa7636..2c2483bbe780 100644
--- a/drivers/net/ieee802154/mac802154_hwsim.c
+++ b/drivers/net/ieee802154/mac802154_hwsim.c
@@ -1035,7 +1035,7 @@  static int hwsim_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int hwsim_remove(struct platform_device *pdev)
+static void hwsim_remove(struct platform_device *pdev)
 {
 	struct hwsim_phy *phy, *tmp;
 
@@ -1043,13 +1043,11 @@  static int hwsim_remove(struct platform_device *pdev)
 	list_for_each_entry_safe(phy, tmp, &hwsim_phys, list)
 		hwsim_del(phy);
 	mutex_unlock(&hwsim_phys_lock);
-
-	return 0;
 }
 
 static struct platform_driver mac802154hwsim_driver = {
 	.probe = hwsim_probe,
-	.remove = hwsim_remove,
+	.remove_new = hwsim_remove,
 	.driver = {
 			.name = "mac802154_hwsim",
 	},