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mac80211: allow interface settings changes only when down

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We currently allow monitor flags changes and mesh ID changes when
the interface is up, which can lead to trouble. Change it to only
allow when down.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2008-09-16 20:22:21 +02:00 committed by John W. Linville
parent 723b038def
commit f8b25cdad7
1 changed files with 3 additions and 0 deletions
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3
net/mac80211/cfg.c
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@ -100,6 +100,9 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
if (ret)
return ret;
if (netif_running(sdata->dev))
return -EBUSY;
if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
ieee80211_sdata_set_mesh_id(sdata,
params->mesh_id_len,