wifi: nl80211: check MLO support in authenticate

We should check that MLO connections are supported before
attempting to authenticate with MLO parameters, check that.

Fixes: d648c230 ("wifi: nl80211: support MLO in auth/assoc")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/wireless/nl80211.c

@@ -10410,6 +10410,8 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
 	req.key_idx = key.idx;
 	req.link_id = nl80211_link_id_or_invalid(info->attrs);
 	if (req.link_id >= 0) {
+		if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_MLO))
+			return -EINVAL;
 		if (!info->attrs[NL80211_ATTR_MLD_ADDR])
 			return -EINVAL;
 		req.ap_mld_addr = nla_data(info->attrs[NL80211_ATTR_MLD_ADDR]);