diff options
| author | Ilan Peer <ilan.peer@intel.com> | 2012-05-09 15:11:55 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-06-06 13:03:54 +0200 |
| commit | 622a9268231bd6b486ec058a28f773fa89926012 (patch) | |
| tree | 57c0eda48dfa100c44611ba7a88998009b7adfb4 /drivers/net/wireless/iwlwifi/iwl-agn.c | |
| parent | iwlwifi: Check BSS ctx active before call mac80211 (diff) | |
| download | linux-622a9268231bd6b486ec058a28f773fa89926012.tar.xz linux-622a9268231bd6b486ec058a28f773fa89926012.zip | |
iwlwifi: handle race condition in ROC flow
When a remain on channel request from mac80211 is followed by
a request to tx a mgmt frame offchannel, it is possible that
the remain on channel expires before the device reported the
tx status for the frame. This causes a race condition in
mac80211.
To fix this, delay the ROC notification to mac80211 until the
device reported the Tx status for all frames in the aux queue.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 5149e6f72945..cd95a240511a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -931,6 +931,9 @@ void iwl_down(struct iwl_priv *priv) priv->ucode_loaded = false; iwl_trans_stop_device(priv->trans); + /* Set num_aux_in_flight must be done after the transport is stopped */ + atomic_set(&priv->num_aux_in_flight, 0); + /* Clear out all status bits but a few that are stable across reset */ priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << STATUS_RF_KILL_HW | |