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mt76: mt7915: fix crash on tx rate report for invalid stations

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Check wcid RCU pointer before using it

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2020-07-24 16:13:10 +02:00
parent 4bf04d33f5
commit c12b7c7944
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
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@ -522,6 +522,9 @@ mt7915_mcu_tx_rate_report(struct mt7915_dev *dev, struct sk_buff *skb)
return;
wcid = rcu_dereference(dev->mt76.wcid[wcidx]);
if (!wcid)
return;
msta = container_of(wcid, struct mt7915_sta, wcid);
stats = &msta->stats;