net: ieee802154: stop dump llsec devs for monitors

[ 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>

diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index 7fdcbaecc4fd60baa13ad95b14b44be7a6252ea9..97074180c2e5fee6a377549056d4eecbf789d617 100644 (file)
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1693,6 +1693,11 @@ 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;