iwl3945: fix station stuff in RC algorithm

Probably bugs I added.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index bb91353c443e..c25daec4f93d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -826,13 +826,12 @@ void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
         rcu_read_lock();
 
         sta = ieee80211_find_sta(hw, priv->stations[sta_id].sta.sta.addr);
-        psta = (void *) sta->drv_priv;
-        if (!sta || !psta) {
-                IWL_DEBUG_RATE("leave - no private rate data!\n");
+        if (!sta) {
                 rcu_read_unlock();
                 return;
         }
 
+        psta = (void *) sta->drv_priv;
         rs_sta = psta->rs_sta;
 
         spin_lock_irqsave(&rs_sta->lock, flags);
@@ -856,7 +855,6 @@ void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
                 break;
         }
 
-        rcu_read_unlock();
         spin_unlock_irqrestore(&rs_sta->lock, flags);
 
         rssi = priv->last_rx_rssi;
@@ -870,6 +868,7 @@ void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
         IWL_DEBUG_RATE("leave: rssi %d assign rate index: "
                        "%d (plcp 0x%x)\n", rssi, rs_sta->start_rate,
                        iwl3945_rates[rs_sta->start_rate].plcp);
+        rcu_read_unlock();
 }
 
 int iwl3945_rate_control_register(void)