Staging: wlan-ng: Use kzfree() to securely zero-out the WEP key when freeing it

Signed-off-by: Moritz Muehlenhoff <jmm@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/wlan-ng/p80211netdev.c

@@ -448,7 +448,7 @@ static int p80211knetdev_hard_start_xmit(struct sk_buff *skb,
 failed:
 	/* Free up the WEP buffer if it's not the same as the skb */
 	if ((p80211_wep.data) && (p80211_wep.data != skb->data))
-		kfree(p80211_wep.data);
+		kzfree(p80211_wep.data);
 
 	/* we always free the skb here, never in a lower level. */
 	if (!result)