The check whether the IBSS is active and can be removed should be
performed before deinitializing the fields used for the check/search.
Otherwise, the configured BSS will not be found and removed properly.
To make it more clear for the future, rename sdata->u.ibss to the
local pointer ifibss which is used within the checks.
This behaviour was introduced by
f3209bea110cade12e2b133da8b8499689cb0e2e
("mac80211: fix IBSS teardown race")
Cc: Ignacy Gawedzki <i@xxxxxx>
Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Signed-off-by: Simon Wunderlich <siwu@xxxxxxxxxxxxxxxxxx>
---
net/mac80211/ibss.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index c7386b2..67774b0 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -1156,10 +1156,6 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
mutex_lock(&sdata->u.ibss.mtx);
- sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH;
- memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
- sdata->u.ibss.ssid_len = 0;
-
active_ibss = ieee80211_sta_active_ibss(sdata);
if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) {
@@ -1180,6 +1176,10 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
}
}
+ ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
+ memset(ifibss->bssid, 0, ETH_ALEN);
+ ifibss->ssid_len = 0;
+
sta_info_flush(sdata->local, sdata);
spin_lock_bh(&ifibss->incomplete_lock);
--
1.7.10
--
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