carl9170: fix hang in AP mode when HT STA does PSM
This is a obvious bug, skb_queue_walk does not
work if the iterator gets removed from the queue.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c
index ea49d54..43de9dfa 100644
--- a/drivers/net/wireless/ath/carl9170/main.c
+++ b/drivers/net/wireless/ath/carl9170/main.c
@@ -1412,7 +1412,7 @@
{
struct ar9170 *ar = hw->priv;
struct carl9170_sta_info *sta_info = (void *) sta->drv_priv;
- struct sk_buff *skb;
+ struct sk_buff *skb, *tmp;
struct sk_buff_head free;
int i;
@@ -1462,7 +1462,7 @@
for (i = 0; i < ar->hw->queues; i++) {
spin_lock_bh(&ar->tx_pending[i].lock);
- skb_queue_walk(&ar->tx_pending[i], skb) {
+ skb_queue_walk_safe(&ar->tx_pending[i], skb, tmp) {
struct _carl9170_tx_superframe *super;
struct ieee80211_hdr *hdr;