From: Ming Yen Hsieh <mingyen.hsieh@xxxxxxxxxxxx>
Read dev->token_count under token_lock to prevent race conditions with
concurrent token updates, ensuring accurate power management decisions.
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@xxxxxxxxxxxx>
---
drivers/net/wireless/mediatek/mt76/mt76_connac.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac.h b/drivers/net/wireless/mediatek/mt76/mt76_connac.h
index 93e5d36206e8..756719ce0e48 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac.h
@@ -383,9 +383,14 @@ static inline bool
mt76_connac_skip_fw_pmctrl(struct mt76_phy *phy, struct mt76_connac_pm *pm)
{
struct mt76_dev *dev = phy->dev;
+ u16 token_count = 0;
bool ret;
- if (dev->token_count)
+ spin_lock_bh(&dev->token_lock);
+ token_count = dev->token_count;
+ spin_unlock_bh(&dev->token_lock);
+
+ if (token_count)
return true;
spin_lock_bh(&pm->wake.lock);
--
2.34.1
