[PATCH 3/3] ieee802154: Remove WARN_ON() in cfg802154_pernet_exit()

From: Ivan Abramov
Date: Thu Mar 27 2025 - 21:10:34 EST


There's no need to call WARN_ON() in cfg802154_pernet_exit(), since
every point of failure in cfg802154_switch_netns() is covered with
WARN_ON(), so remove it.

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Fixes: 66e5c2672cd1 ("ieee802154: add netns support")
Signed-off-by: Ivan Abramov <i.abramov@xxxxxxxxxxxxxxxxx>
---
net/ieee802154/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ieee802154/core.c b/net/ieee802154/core.c
index 8c47957f5df7..274112ff2955 100644
--- a/net/ieee802154/core.c
+++ b/net/ieee802154/core.c
@@ -358,7 +358,7 @@ static void __net_exit cfg802154_pernet_exit(struct net *net)
rtnl_lock();
list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
if (net_eq(wpan_phy_net(&rdev->wpan_phy), net))
- WARN_ON(cfg802154_switch_netns(rdev, &init_net));
+ cfg802154_switch_netns(rdev, &init_net);
}
rtnl_unlock();
}
--
2.39.5