wifi: mt76: connac: accept hw scan request at a time

The current hw scan cannot accept multiple hw scan requests at a time, we
return the proper error code when the hw scan is still undergoing.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
index 92855d8264d134edf6594b05a5d9f53c86dc1886..6b2ce5fd3e4fe213461779187dbb9328912526d8 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
@@ -1571,6 +1571,9 @@ int mt76_connac_mcu_hw_scan(struct mt76_phy *phy, struct ieee80211_vif *vif,
        struct mt76_connac_hw_scan_req *req;
        struct sk_buff *skb;
 
+       if (test_bit(MT76_HW_SCANNING, &phy->state))
+               return -EBUSY;
+
        skb = mt76_mcu_msg_alloc(mdev, NULL, sizeof(*req));
        if (!skb)
                return -ENOMEM;