[PATCH AUTOSEL 5.10 28/46] net: ieee802154: stop dump llsec devs for monitors

Sasha Levin
2021-04-12T16:29:57Z

From: Alexander Aring <aahringo@redhat.com>

[ Upstream commit 5582d641e6740839c9b83efd1fbf9bcd00b6f5fc ]

This patch stops dumping llsec devs for monitors which we don't support
yet. Otherwise we will access llsec mib which isn't initialized for
monitors.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20210405003054.256017-7-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/ieee802154/nl802154.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index 9cdc1457c97c..39a81602e5b5 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1672,6 +1672,11 @@ nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb)
if (err)
return err;

+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
+ err = skb->len;
+ goto out_err;
+ }
+
if (!wpan_dev->netdev) {
err = -EINVAL;
goto out_err;
--
2.30.2