Commit ff311bc1 authored Sep 03, 2013 by Simon Wunderlich Committed by Johannes Berg Oct 01, 2013

nl80211: allow CAC only if no operation is going on



A CAC should fail if it is triggered while the interface is already
running.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent 1f4ffde8

net/wireless/nl80211.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -5591,6 +5591,9 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
		if (err)
		return err;

		if (netif_carrier_ok(dev))
		return -EBUSY;

		if (wdev->cac_started)
		return -EBUSY;