commit: 992d52529d7840236d3059b51c15d5eb9e81a869 From: Nicolas Cavallari <[email protected]> Date: Thu, 23 Feb 2012 16:53:34 +0100 Subject: carl9170: Fix memory accounting when sta is in power-save mode.
On Access Point mode, when transmitting a packet, if the destination station is in powersave mode, we abort transmitting the packet to the device queue, but we do not reclaim the allocated memory. Given enough packets, we can go in a state where there is no packet on the device queue, but we think the device has no memory left, so no packet gets transmitted, connections breaks and the AP stops working. This undo the allocation done in the TX path when the station is in power-save mode. Signed-off-by: Nicolas Cavallari <[email protected]> Acked-by: Christian Lamparter <[email protected]> Cc: stable <[email protected]> Signed-off-by: John W. Linville <[email protected]> --- drivers/net/wireless/ath/carl9170/tx.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/net/wireless/ath/carl9170/tx.c b/drivers/net/wireless/ath/carl9170/tx.c index d19a9ee..22a7931 100644 --- a/drivers/net/wireless/ath/carl9170/tx.c +++ b/drivers/net/wireless/ath/carl9170/tx.c @@ -1251,6 +1251,7 @@ static bool carl9170_tx_ps_drop(struct ar9170 *ar, struct sk_buff *skb) atomic_dec(&ar->tx_ampdu_upload); tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED; + carl9170_release_dev_space(ar, skb); carl9170_tx_status(ar, skb, false); return true; } -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
