If you add a monitor interface in paralell to a normal interface mac80211 will let you to change the channel type on the monitor interface even if you are connected. Add an explicit check to disallow this. Signed-off-by: Pontus Fuchs <pontus.fuchs@xxxxxxxxx> --- net/mac80211/cfg.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 498c94e..a87591b 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -689,7 +689,8 @@ static int ieee80211_set_channel(struct wiphy *wiphy, case CHAN_MODE_HOPPING: return -EBUSY; case CHAN_MODE_FIXED: - if (local->oper_channel != chan) + if (local->oper_channel != chan || + (!netdev && local->_oper_channel_type != channel_type)) return -EBUSY; if (!sdata && local->_oper_channel_type == channel_type) return 0; -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
