staging: vt6655: 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> # v3.19+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index ed040fbb7df8d319ba39b61acf2009a163bf3745..b0c8e235b982164bb170b53655ccfc8d01378d6b 100644 (file)
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -1418,7 +1418,7 @@ 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) {
                unsigned long flags;
 
                spin_lock_irqsave(&priv->lock, flags);