staging: vt6656: check ieee80211_bss_conf bssid not NULL

Sometimes bssid can go null on failed association.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Cc: <stable@vger.kernel.org> # v3.17+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index f97323f..af572d7 100644 (file)
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -701,7 +701,7 @@ static void vnt_bss_info_changed(struct ieee80211_hw *hw,
 
        priv->current_aid = conf->aid;
 
-       if (changed & BSS_CHANGED_BSSID)
+       if (changed & BSS_CHANGED_BSSID && conf->bssid)
                vnt_mac_set_bssid_addr(priv, (u8 *)conf->bssid);