diff options
| -rw-r--r-- | net/mac80211/wext.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 31d2e74..231cab5 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -656,6 +656,7 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev, union iwreq_data *data, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_channel* chan = local->hw.conf.channel; u32 reconf_flags = 0; int new_power_level; @@ -663,20 +664,13 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev, return -EINVAL; if (data->txpower.flags & IW_TXPOW_RANGE) return -EINVAL; + if (!chan) + return -EINVAL; - if (data->txpower.fixed) { - new_power_level = data->txpower.value; - } else { - /* - * Automatic power level. Use maximum power for the current - * channel. Should be part of rate control. - */ - struct ieee80211_channel* chan = local->hw.conf.channel; - if (!chan) - return -EINVAL; - + if (data->txpower.fixed) + new_power_level = min(data->txpower.value, chan->max_power); + else /* Automatic power level setting */ new_power_level = chan->max_power; - } if (local->hw.conf.power_level != new_power_level) { local->hw.conf.power_level = new_power_level; |
