mwifiex: return success in set_default_key for WPA/WPA2

When testing wpa_supplicant with 'nl80211' driver to connect
to an AP with WPA/WPA2 security, we notice the followings:

1) add_key is called firstly with the key from cfg80211
2) set_defaut_key is called next

set_default_key() is specific to WEP keys and should not be
called in case of WPA/WPA2 security. The set_default_key()
won't be called if wpa_supplicant uses "-Dwext" option,
but it's been called if "-Dnl80211" option is specified.

We can fix this issue by adding a check to return from
set_default_key() if WEP key is not configured.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Marc Yang <yangyang@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index 2d9680044c12..4ac4f5a0ce61 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -228,6 +228,10 @@ mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
         struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
         int ret;
 
+        /* Return if WEP key not configured */
+        if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED)
+                return 0;
+
         ret = mwifiex_set_encode(priv, NULL, 0, key_index, 0);
 
         wiphy_dbg(wiphy, "info: set default Tx key index\n");