nl80211: use eth_zero_addr() to clear mac address

Use eth_zero_addr() to clear mac address instead of memset().
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Link: https://lore.kernel.org/r/1596273349-24333-1-git-send-email-linmiaohe@huawei.comSigned-off-by: Johannes Berg <johannes.berg@intel.com>

net/wireless/nl80211.c

@@ -10400,8 +10400,7 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
 			memcpy(dev->ieee80211_ptr->disconnect_bssid,
 			       connect.bssid, ETH_ALEN);
 		else
-			memset(dev->ieee80211_ptr->disconnect_bssid,
-			       0, ETH_ALEN);
+			eth_zero_addr(dev->ieee80211_ptr->disconnect_bssid);
 	}
 
 	wdev_unlock(dev->ieee80211_ptr);