iwlwifi: clean up and bug fix for security

This patch cleans up code in security.

1) uses the new pointer to ieee80211_key_conf passed with the tx_control.
2) resolves bug reported by Mirco Tischler (sends ADD_STA in ASYNC mode)
3) resolves bug reported by Volker Braun regarding dynamic WEP
4) drops a WEP packet which has been garbaged by firmware. This can
happen upon rekeying.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index a532a9e576dc..40616dbd26f0 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -4951,7 +4951,8 @@ static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
                 if (cmd == SET_KEY)
                         is_default_wep_key = !priv->key_mapping_key;
                 else
-                        is_default_wep_key = priv->default_wep_key;
+                        is_default_wep_key =
+                                        (key->hw_key_idx == HW_KEY_DEFAULT);
         }
 
         switch (cmd) {