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Commit b03c0617 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Greg Kroah-Hartman
Browse files

mt76: mt7615: check sta_rates pointer in mt7615_sta_rate_tbl_update 



[ Upstream commit 6a6f457ed5fdf6777536c20644a9e42128a50ec2 ]

Check sta_rates pointer value in mt7615_sta_rate_tbl_update routine
since minstrel_ht_update_rates can fail allocating rates array.

Fixes: 04b8e659 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets")
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent eb593216

drivers/net/wireless/mediatek/mt76/mt7615/main.c

+3 −0
Original line number Diff line number Diff line
@@ -385,6 +385,9 @@ static void mt7615_sta_rate_tbl_update(struct ieee80211_hw *hw, 
	struct ieee80211_sta_rates *sta_rates = rcu_dereference(sta->rates);

	int i;



	if (!sta_rates)

		return;



	spin_lock_bh(&dev->mt76.lock);

	for (i = 0; i < ARRAY_SIZE(msta->rates); i++) {

		msta->rates[i].idx = sta_rates->rate[i].idx;