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authorWey-Yi Guy <wey-yi.w.guy@intel.com>2009-03-17 21:51:43 -0700
committerJohn W. Linville <linville@tuxdriver.com>2009-03-27 20:12:57 -0400
commit5c2207c64209be2fe0d6b43ada2e41b28a948015 (patch)
tree0cef2f9713b33626d21843b0a3cf0fd1062b7054
parent37fec3846a5a8b098e35c44ee858407bab0df43f (diff)
iwlwifi: return 0 for AMPDU_TX/RX_STOP request if NIC is going down
When receive IEEE80211_AMPDU_RX_STOP or IEEE80211_AMPDU_TX_STOP request in iwl_mac_ampdu_action() from mac80211; check STATUS_EXIT_PENDING bit, if NIC is on the way out, then return 0 back to mac80211, this can prevent mac80211 report HW error incorrectly. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-agn.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 4d2ed52af16..c1482852ea4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2683,6 +2683,7 @@ static int iwl_mac_ampdu_action(struct ieee80211_hw *hw,
struct ieee80211_sta *sta, u16 tid, u16 *ssn)
{
struct iwl_priv *priv = hw->priv;
+ int ret;
IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
sta->addr, tid);
@@ -2696,13 +2697,21 @@ static int iwl_mac_ampdu_action(struct ieee80211_hw *hw,
return iwl_sta_rx_agg_start(priv, sta->addr, tid, *ssn);
case IEEE80211_AMPDU_RX_STOP:
IWL_DEBUG_HT(priv, "stop Rx\n");
- return iwl_sta_rx_agg_stop(priv, sta->addr, tid);
+ ret = iwl_sta_rx_agg_stop(priv, sta->addr, tid);
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return 0;
+ else
+ return ret;
case IEEE80211_AMPDU_TX_START:
IWL_DEBUG_HT(priv, "start Tx\n");
return iwl_tx_agg_start(priv, sta->addr, tid, ssn);
case IEEE80211_AMPDU_TX_STOP:
IWL_DEBUG_HT(priv, "stop Tx\n");
- return iwl_tx_agg_stop(priv, sta->addr, tid);
+ ret = iwl_tx_agg_stop(priv, sta->addr, tid);
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return 0;
+ else
+ return ret;
default:
IWL_DEBUG_HT(priv, "unknown\n");
return -EINVAL;