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| author | Reinette Chatre <reinette.chatre@intel.com> | 2010-05-28 09:28:39 -0700 |
|---|---|---|
| committer | Reinette Chatre <reinette.chatre@intel.com> | 2010-06-14 10:51:16 -0700 |
| commit | da5ae1cfff4cc5b9392eab59b227ad907626d7aa (patch) | |
| tree | 67776b88a0f37dc2c0f2b839076279d1ecd78239 /drivers/net/wireless/iwlwifi/iwl-sta.c | |
| parent | b054b747a694927879c94dd11af54d04346aed7d (diff) | |
| download | linux-stable-da5ae1cfff4cc5b9392eab59b227ad907626d7aa.tar.gz linux-stable-da5ae1cfff4cc5b9392eab59b227ad907626d7aa.tar.bz2 linux-stable-da5ae1cfff4cc5b9392eab59b227ad907626d7aa.zip | |
iwlwifi: serialize station management actions
We are seeing some race conditions between incoming station management
requests (station add/remove) and the internal unassoc RXON command that
modifies station table. Modify these flows to require the mutex to be held
and thus serializing them.
This fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2207
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-sta.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-sta.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c index 83a26361a9b5..c27c13fbb1ae 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-sta.c @@ -1373,10 +1373,14 @@ int iwl_mac_sta_remove(struct ieee80211_hw *hw, IWL_DEBUG_INFO(priv, "received request to remove station %pM\n", sta->addr); + mutex_lock(&priv->mutex); + IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", + sta->addr); ret = iwl_remove_station(priv, sta_common->sta_id, sta->addr); if (ret) IWL_ERR(priv, "Error removing station %pM\n", sta->addr); + mutex_unlock(&priv->mutex); return ret; } EXPORT_SYMBOL(iwl_mac_sta_remove); |