diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2010-06-07 21:20:38 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-06-08 14:34:08 -0400 |
| commit | 6db6340c42d027b6364d49fa99d69019aca24de4 (patch) | |
| tree | ac8e547e4f22edfaed9336899807112dbb185847 /drivers | |
| parent | 35dd0509b21e4b5bab36b9eb80c8dab0322f5007 (diff) | |
| download | lwn-6db6340c42d027b6364d49fa99d69019aca24de4.tar.gz lwn-6db6340c42d027b6364d49fa99d69019aca24de4.zip | |
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.c | 2 |
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); } |