diff options
| author | Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de> | 2012-11-13 18:43:03 +0100 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2012-12-06 11:20:23 +0000 |
| commit | 183b8794f7e2ec03fbbf915343cee9e099900307 (patch) | |
| tree | 314cdddc5ca6a90d9f523b75e7f0f1b167cd28c9 | |
| parent | 733dcd5a3d61164b794d461750aed607cd46120d (diff) | |
mac80211: deinitialize ibss-internals after emptiness check
commit b78a4932f5fb11fadf41e69c606a33fa6787574c upstream.
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@lri.fr>
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | net/mac80211/ibss.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 8c7364b8183..9e20cb82077 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -965,10 +965,6 @@ 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)) { @@ -989,6 +985,10 @@ 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); /* remove beacon */ |