iwlwifi: Fix uCode error on association

The problem is that priv->assoc_id is set when assoc. resp frame is
received. But, when it is set, LQ cmd is still not sent to the uCode, it is
done from bg_post_assoc, which is called through a workqueue.

On the other hand, when a tx arrives at the moment when this flag is set,
but LQ is still not sent, the if condition in tx_skb will not hold and
the frame will not be dropped.  Thus, it will be sent through
which is still not in the sta table in the uCoded.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/wireless/iwlwifi/iwl-3945.h

@@ -790,7 +790,6 @@ struct iwl3945_priv {
 	u16 active_rate_basic;
 
 	u8 call_post_assoc_from_beacon;
-	u8 assoc_station_added;
 	/* Rate scaling data */
 	s8 data_retry_limit;
 	u8 retry_rate;

drivers/net/wireless/iwlwifi/iwl3945-base.c

@@ -2806,7 +2806,7 @@ static int iwl3945_tx_skb(struct iwl3945_priv *priv,
 #endif
 
 	/* drop all data frame if we are not associated */
-	if (!iwl3945_is_associated(priv) && !priv->assoc_id &&
+	if ((!iwl3945_is_associated(priv) || !priv->assoc_id) &&
 	    ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
 		IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
 		goto drop_unlock;

drivers/net/wireless/iwlwifi/iwl4965-base.c

@@ -2933,8 +2933,10 @@ static int iwl4965_tx_skb(struct iwl4965_priv *priv,
 #endif
 
 	/* drop all data frame if we are not associated */
-	if (!iwl4965_is_associated(priv) && !priv->assoc_id &&
-	    ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
+	if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
+	   (!iwl4965_is_associated(priv) ||
+	    !priv->assoc_id ||
+	    !priv->assoc_station_added)) {
 		IWL_DEBUG_DROP("Dropping - !iwl4965_is_associated\n");
 		goto drop_unlock;
 	}