diff options
| author | Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de> | 2012-11-13 18:43:03 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-12-03 12:59:14 -0800 |
| commit | 34ef0d5705afa428c02781a5c12f3178caa12559 (patch) | |
| tree | 40c4d6fcd181f3018b0c4c489488307282c7019a /net/mac80211 | |
| parent | beb93b17f27dee8a85db7bf0d882b59cdff4b2a0 (diff) | |
| download | lwn-34ef0d5705afa428c02781a5c12f3178caa12559.tar.gz lwn-34ef0d5705afa428c02781a5c12f3178caa12559.zip | |
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")
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Cc: Ignacy Gawedzki <i@lri.fr>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/mac80211')
| -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 8adcc9e93b01..c6399f6cbc9e 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 */ |