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Diffstat (limited to 'net/mac80211/sta_info.c')
-rw-r--r--net/mac80211/sta_info.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 2db01e9541e7..3d01abb2b813 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -822,10 +822,13 @@ static int __must_check __sta_info_destroy(struct sta_info *sta)
* until the aggregation stop completes. Refer
* http://thread.gmane.org/gmane.linux.kernel.wireless.general/81936
*/
+
+ mutex_lock(&sta->ampdu_mlme.mtx);
+
for (i = 0; i < STA_TID_NUM; i++) {
- if (!sta->ampdu_mlme.tid_tx[i])
+ tid_tx = rcu_dereference_protected_tid_tx(sta, i);
+ if (!tid_tx)
continue;
- tid_tx = sta->ampdu_mlme.tid_tx[i];
if (skb_queue_len(&tid_tx->pending)) {
#ifdef CONFIG_MAC80211_HT_DEBUG
wiphy_debug(local->hw.wiphy, "TX A-MPDU purging %d "
@@ -837,6 +840,8 @@ static int __must_check __sta_info_destroy(struct sta_info *sta)
kfree_rcu(tid_tx, rcu_head);
}
+ mutex_unlock(&sta->ampdu_mlme.mtx);
+
sta_info_free(local, sta);
return 0;
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