1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 1e3b5f4a4cf9..f23cb2f3d296 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1251,6 +1251,7 @@ static int ath9k_add_interface(struct ieee80211_hw *hw,
         struct ath_vif *avp = (void *)vif->drv_priv;
         struct ath_node *an = &avp->mcast_node;
 
+        mutex_lock(&sc->mutex);
         if (IS_ENABLED(CONFIG_ATH9K_TX99)) {
                 if (sc->cur_chan->nvifs >= 1) {
                         mutex_unlock(&sc->mutex);
@@ -1259,8 +1260,6 @@ static int ath9k_add_interface(struct ieee80211_hw *hw,
                 sc->tx99_vif = vif;
         }
 
-        mutex_lock(&sc->mutex);
-
         ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type);
         sc->cur_chan->nvifs++;