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-rw-r--r--net/mac80211/iface.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 9ab772ac74a..5abbc3f07dd 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -698,6 +698,10 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
if (type == sdata->vif.type)
return 0;
+ /* Setting ad-hoc mode on non-IBSS channel is not supported. */
+ if (sdata->local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS)
+ return -EOPNOTSUPP;
+
/*
* We could, here, on changes between IBSS/STA/MESH modes,
* invoke an MLME function instead that disassociates etc.