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mt76x2: fix possible NULL pointer dereferencing in mt76x2_ampdu_action()

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Initialize mt76_txq pointer after ieee80211_txq pointer check.
Remove space after the pointer cast

Fixes: 7bc04215a66b ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <[email protected]>
This commit is contained in:
Lorenzo Bianconi
2017-12-14 16:41:52 +01:00
committed by Felix Fietkau
parent cf4a5ce03d
commit ca5ca8c779
1 changed files with 3 additions and 1 deletions
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mt76x2_main.c
+3 -1
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@@ -466,13 +466,15 @@ mt76x2_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct mt76x2_dev *dev = hw->priv;
struct mt76x2_sta *msta = (struct mt76x2_sta *) sta->drv_priv;
struct ieee80211_txq *txq = sta->txq[params->tid];
struct mt76_txq *mtxq = (struct mt76_txq *) txq->drv_priv;
u16 tid = params->tid;
u16 *ssn = &params->ssn;
struct mt76_txq *mtxq;
if (!txq)
return -EINVAL;
mtxq = (struct mt76_txq *)txq->drv_priv;
switch (action) {
case IEEE80211_AMPDU_RX_START:
mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid));