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authorSujith <Sujith.Manoharan@atheros.com>2010-04-26 15:09:39 +0530
committerJohn W. Linville <linville@tuxdriver.com>2010-04-27 16:09:15 -0400
commitd439260e04eca5bce88558feecee4369784f2175 (patch)
treea759baf9a4d038f340845b6b689a96098c19a833 /drivers
parent5bf1e17a4a3870d4f03dc39f1bec4464bbdf4887 (diff)
ath9k_htc: Validate TX Endpoint ID
Check for the endpoint IDs when processing TX completions and drop the unsupported EPIDs. We can add other endpoints (UAPSD,..) when support is added. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath/ath9k/htc_drv_txrx.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index 2c3c51007dd..08bfe5d81c1 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -244,16 +244,25 @@ void ath9k_htc_txep(void *drv_priv, struct sk_buff *skb,
enum htc_endpoint_id ep_id, bool txok)
{
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) drv_priv;
+ struct ath_common *common = ath9k_hw_common(priv->ah);
struct ieee80211_tx_info *tx_info;
if (!skb)
return;
- if (ep_id == priv->mgmt_ep)
+ if (ep_id == priv->mgmt_ep) {
skb_pull(skb, sizeof(struct tx_mgmt_hdr));
- else
- /* TODO: Check for cab/uapsd/data */
+ } else if ((ep_id == priv->data_bk_ep) ||
+ (ep_id == priv->data_be_ep) ||
+ (ep_id == priv->data_vi_ep) ||
+ (ep_id == priv->data_vo_ep)) {
skb_pull(skb, sizeof(struct tx_frame_hdr));
+ } else {
+ ath_print(common, ATH_DBG_FATAL,
+ "Unsupported TX EPID: %d\n", ep_id);
+ dev_kfree_skb_any(skb);
+ return;
+ }
tx_info = IEEE80211_SKB_CB(skb);