[PATCH] drivers_net_at1700.c save_flags unsigned check

  The function save_flags must use unsigned long instead long (signed)
  This trivial patch solves the problem

drivers/net/at1700.c

@@ -808,7 +808,7 @@ set_rx_mode(struct net_device *dev)
 	int ioaddr = dev->base_addr;
 	struct net_local *lp = (struct net_local *)dev->priv;
 	unsigned char mc_filter[8];		 /* Multicast hash filter */
-	long flags;
+       unsigned long flags;
 	int i;
 
 	if (dev->flags & IFF_PROMISC) {