diff options
Diffstat (limited to 'net/mac80211/cfg.c')
| -rw-r--r-- | net/mac80211/cfg.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index cd6f35f6e71..64cf294c2b9 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2841,6 +2841,12 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, return -EOPNOTSUPP; } + /* configurations requiring offchan cannot work if no channel has been + * specified + */ + if (need_offchan && !chan) + return -EINVAL; + mutex_lock(&local->mtx); /* Check if the operating channel is the requested channel */ @@ -2850,10 +2856,15 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, rcu_read_lock(); chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); - if (chanctx_conf) - need_offchan = chan != chanctx_conf->def.chan; - else + if (chanctx_conf) { + need_offchan = chan && (chan != chanctx_conf->def.chan); + } else if (!chan) { + ret = -EINVAL; + rcu_read_unlock(); + goto out_unlock; + } else { need_offchan = true; + } rcu_read_unlock(); } |