Commit 1ff79dfa authored by Johannes Berg's avatar Johannes Berg
Browse files

nl80211: check channel switch validity better



Before allowing userspace to initiate a channel switch, check
that it's actually connected in some sense. Also use a more
appropriate error code for the not connected case.
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent c782bf8c
......@@ -5771,10 +5771,15 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
/* useless if AP is not running */
if (!wdev->beacon_interval)
return -EINVAL;
return -ENOTCONN;
break;
case NL80211_IFTYPE_ADHOC:
if (!wdev->ssid_len)
return -ENOTCONN;
break;
case NL80211_IFTYPE_MESH_POINT:
if (!wdev->mesh_id_len)
return -ENOTCONN;
break;
default:
return -EOPNOTSUPP;
......
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