mac80211: fix internal scan request

The internal scan request mac80211 uses to
scan for IBSS networks was set up to contain
no channels at all because n_channels wasn't
set after setting up the channels array. Fix
this to properly scan for networks.

Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: John W. Linville <[email protected]>

net/mac80211/main.c

@@ -901,6 +901,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 			i++;
 		}
 	}
+	local->int_scan_req->n_channels = i;
 
 	local->network_latency_notifier.notifier_call =
 		ieee80211_max_network_latency;