X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=net%2Fmac80211%2Fdebugfs_sta.c;h=189d0bafa91ae0f274c2813f912012679f53903d;hb=0552f297951d0ab3a1027f9b06fa40c9be8378ba;hp=b9902e425f096f336f93c97aa2a4494508de4272;hpb=20272c8994cf1e1f8ed745a2ea161dd9ad3889f2;p=linux-2.6-omap-h63xx.git

diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index b9902e425f0..189d0bafa91 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -249,11 +249,22 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
 	DECLARE_MAC_BUF(mbuf);
 	u8 *mac;
 
+	sta->debugfs.add_has_run = true;
+
 	if (!stations_dir)
 		return;
 
 	mac = print_mac(mbuf, sta->sta.addr);
 
+	/*
+	 * This might fail due to a race condition:
+	 * When mac80211 unlinks a station, the debugfs entries
+	 * remain, but it is already possible to link a new
+	 * station with the same address which triggers adding
+	 * it to debugfs; therefore, if the old station isn't
+	 * destroyed quickly enough the old station's debugfs
+	 * dir might still be around.
+	 */
 	sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
 	if (!sta->debugfs.dir)
 		return;