Fix the NULL pointer dereference in mt7996_mcu_sta_bfer_eht.

Found by code review.

Cc: stable@vger.kernel.org Fixes: ba01944adee9 ("wifi: mt76: mt7996: add EHT beamforming support") Signed-off-by: Ma Ke make24@iscas.ac.cn --- drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c index 2e4fa9f48dfb..d0fe2505ddbf 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c @@ -1605,6 +1605,9 @@ mt7996_mcu_sta_bfer_eht(struct ieee80211_sta *sta, struct ieee80211_vif *vif, IEEE80211_EHT_MCS_NSS_RX) - 1; u8 snd_dim, sts;

+ if (!vc) + return; + bf->tx_mode = MT_PHY_TYPE_EHT_MU;

mt7996_mcu_sta_sounding_rate(bf);