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authorJohannes Berg <johannes.berg@intel.com>2010-06-07 21:20:38 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-06-08 14:34:08 -0400
commit6db6340c42d027b6364d49fa99d69019aca24de4 (patch)
treeac8e547e4f22edfaed9336899807112dbb185847 /drivers
parent35dd0509b21e4b5bab36b9eb80c8dab0322f5007 (diff)
iwlwifi: add missing rcu_read_lock
Using ieee80211_find_sta() needs to be under RCU read lock, which iwlwifi currently misses, so fix it. Cc: stable@kernel.org Reported-by: Miles Lane <miles.lane@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Reinette Chatre <reinette.chatre@intel.com> Tested-by: Miles Lane <miles.lane@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-agn-tx.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index c402bfc83f36..a732f1094e5d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -1125,6 +1125,7 @@ static void iwlagn_tx_status(struct iwl_priv *priv, struct sk_buff *skb)
struct ieee80211_sta *sta;
struct iwl_station_priv *sta_priv;
+ rcu_read_lock();
sta = ieee80211_find_sta(priv->vif, hdr->addr1);
if (sta) {
sta_priv = (void *)sta->drv_priv;
@@ -1133,6 +1134,7 @@ static void iwlagn_tx_status(struct iwl_priv *priv, struct sk_buff *skb)
atomic_dec_return(&sta_priv->pending_frames) == 0)
ieee80211_sta_block_awake(priv->hw, sta, false);
}
+ rcu_read_unlock();
ieee80211_tx_status_irqsafe(priv->hw, skb);
}