iwl3945: fix scan races
Port following patch to 3945.
"commit 90c4162ff59a3281b6d2f7206740be6217bd6758
Author: Johannes Berg <johannes.berg@intel.com>
Date: Wed Apr 7 00:21:36 2010 -0700
iwlwifi: fix scan races"
Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 7273609..7deed86 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -515,6 +515,7 @@
int iwl_mac_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct cfg80211_scan_request *req);
+void iwl_bg_start_internal_scan(struct work_struct *work);
void iwl_internal_short_hw_scan(struct iwl_priv *priv);
int iwl_force_reset(struct iwl_priv *priv, int mode);
u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 447c301..28e2d86 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -367,7 +367,7 @@
queue_work(priv->workqueue, &priv->start_internal_scan);
}
-static void iwl_bg_start_internal_scan(struct work_struct *work)
+void iwl_bg_start_internal_scan(struct work_struct *work)
{
struct iwl_priv *priv =
container_of(work, struct iwl_priv, start_internal_scan);
@@ -402,6 +402,7 @@
unlock:
mutex_unlock(&priv->mutex);
}
+EXPORT_SYMBOL(iwl_bg_start_internal_scan);
void iwl_bg_scan_check(struct work_struct *data)
{
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 867d105..04cedef 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -3739,6 +3739,7 @@
INIT_DELAYED_WORK(&priv->_3945.rfkill_poll, iwl3945_rfkill_poll);
INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);
INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan);
+ INIT_WORK(&priv->start_internal_scan, iwl_bg_start_internal_scan);
INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check);
iwl3945_hw_setup_deferred_work(priv);
@@ -3761,6 +3762,7 @@
cancel_delayed_work_sync(&priv->init_alive_start);
cancel_delayed_work(&priv->scan_check);
cancel_delayed_work(&priv->alive_start);
+ cancel_work_sync(&priv->start_internal_scan);
cancel_work_sync(&priv->beacon_update);
if (priv->cfg->ops->lib->recover_from_tx_stall)
del_timer_sync(&priv->monitor_recover);