nl80211: allow CAC only if no operation is going on · ff311bc11a - Gogs

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>

Simon Wunderlich 12 years ago

parent

1f4ffde845

commit

ff311bc11a

1 changed files with 3 additions and 0 deletions

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							+ 3
							
							- 0
						
net/wireless/nl80211.c
							 
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				@@ -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;