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-rw-r--r--net/mac80211/sta_info.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index dc352fc..79383ef 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -116,7 +116,6 @@ static void __cleanup_single_sta(struct sta_info *sta)
clear_sta_flag(sta, WLAN_STA_PS_DELIVER);
atomic_dec(&ps->num_sta_ps);
- sta_info_recalc_tim(sta);
}
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
@@ -625,7 +624,7 @@ static unsigned long ieee80211_tids_for_ac(int ac)
}
}
-void sta_info_recalc_tim(struct sta_info *sta)
+static void __sta_info_recalc_tim(struct sta_info *sta, bool ignore_pending)
{
struct ieee80211_local *local = sta->local;
struct ps_data *ps;
@@ -667,6 +666,9 @@ void sta_info_recalc_tim(struct sta_info *sta)
if (ignore_for_tim == BIT(IEEE80211_NUM_ACS) - 1)
ignore_for_tim = 0;
+ if (ignore_pending)
+ ignore_for_tim = BIT(IEEE80211_NUM_ACS) - 1;
+
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
unsigned long tids;
@@ -695,7 +697,7 @@ void sta_info_recalc_tim(struct sta_info *sta)
else
__bss_tim_clear(ps->tim, id);
- if (local->ops->set_tim) {
+ if (local->ops->set_tim && !WARN_ON(sta->dead)) {
local->tim_in_locked_section = true;
drv_set_tim(local, &sta->sta, indicate_tim);
local->tim_in_locked_section = false;
@@ -705,6 +707,11 @@ out_unlock:
spin_unlock_bh(&local->tim_lock);
}
+void sta_info_recalc_tim(struct sta_info *sta)
+{
+ __sta_info_recalc_tim(sta, false);
+}
+
static bool sta_info_buffer_expired(struct sta_info *sta, struct sk_buff *skb)
{
struct ieee80211_tx_info *info;
@@ -888,6 +895,9 @@ static void __sta_info_destroy_part2(struct sta_info *sta)
/* now keys can no longer be reached */
ieee80211_free_sta_keys(local, sta);
+ /* disable TIM bit - last chance to tell driver */
+ __sta_info_recalc_tim(sta, true);
+
sta->dead = true;
local->num_sta--;
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