From: Sujith Manoharan <sujith.manoha...@atheros.com>

Addition of a station might fail - handle this error
properly by removing the VAP on the target.
Also, bail out immediately if the max. no of interfaces
has been reached.

Signed-off-by: Sujith Manoharan <sujith.manoha...@atheros.com>
---
 drivers/net/wireless/ath/ath9k/htc_drv_main.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c 
b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index c960330..b3b33ff 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -1138,7 +1138,8 @@ static int ath9k_htc_add_interface(struct ieee80211_hw 
*hw,
 
        if (priv->nvifs >= ATH9K_HTC_MAX_VIF) {
                ret = -ENOBUFS;
-               goto out;
+               mutex_unlock(&priv->mutex);
+               return ret;
        }
 
        ath9k_htc_ps_wakeup(priv);
@@ -1166,18 +1167,19 @@ static int ath9k_htc_add_interface(struct ieee80211_hw 
*hw,
        if (ret)
                goto out;
 
-       priv->nvifs++;
-
        /*
         * We need a node in target to tx mgmt frames
         * before association.
         */
        ret = ath9k_htc_add_station(priv, vif, NULL);
-       if (ret)
+       if (ret) {
+               WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
                goto out;
+       }
 
        priv->ah->opmode = vif->type;
        priv->vif_slot |= (1 << avp->index);
+       priv->nvifs++;
        priv->vif = vif;
 
        ath_dbg(common, ATH_DBG_CONFIG,
-- 
1.7.3.5

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