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wifi: mt76: mt7996: grab mt76 mutex in mt7996_mac_sta_event()

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Grab mt76 mutex in mt7996_mac_sta_event routine in order to rely on
mt76_dereference() utility macro.

Fixes: ecd72f9695 ("wifi: mt76: mt7996: Support MLO in mt7996_mac_sta_event()")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Tested-by: Ben Greear <greearb@candelatech.com>
Link: https://patch.msgid.link/20251114-mt76-fix-missing-mtx-v1-1-259ebf11f654@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2025-11-14 14:16:21 +01:00 committed by Felix Fietkau
parent 2ccbea08dd
commit 5a4bcba26e
1 changed files with 10 additions and 5 deletions
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15
drivers/net/wireless/mediatek/mt76/mt7996/main.c
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@ -1159,12 +1159,15 @@ mt7996_mac_sta_event(struct mt7996_dev *dev, struct ieee80211_vif *vif,
unsigned long links = sta->valid_links;
struct ieee80211_link_sta *link_sta;
unsigned int link_id;
int err = 0;
mutex_lock(&dev->mt76.mutex);
for_each_sta_active_link(vif, sta, link_sta, link_id) {
struct ieee80211_bss_conf *link_conf;
struct mt7996_sta_link *msta_link;
struct mt7996_vif_link *link;
int i, err;
int i;
link_conf = link_conf_dereference_protected(vif, link_id);
if (!link_conf)
@ -1184,12 +1187,12 @@ mt7996_mac_sta_event(struct mt7996_dev *dev, struct ieee80211_vif *vif,
link, msta_link,
CONN_STATE_CONNECT, true);
if (err)
return err;
goto unlock;
err = mt7996_mcu_add_rate_ctrl(dev, msta_link->sta, vif,
link_id, false);
if (err)
return err;
goto unlock;
msta_link->wcid.tx_info |= MT_WCID_TX_INFO_SET;
break;
@ -1198,7 +1201,7 @@ mt7996_mac_sta_event(struct mt7996_dev *dev, struct ieee80211_vif *vif,
link, msta_link,
CONN_STATE_PORT_SECURE, false);
if (err)
return err;
goto unlock;
break;
case MT76_STA_EVENT_DISASSOC:
for (i = 0; i < ARRAY_SIZE(msta_link->twt.flow); i++)
@ -1218,8 +1221,10 @@ mt7996_mac_sta_event(struct mt7996_dev *dev, struct ieee80211_vif *vif,
break;
}
}
unlock:
mutex_unlock(&dev->mt76.mutex);
return 0;
return err;
}
static void