[PATCH] e100 use-after-free fix

I though Scott had recently merged this but it seems not.  We'll be
needing this patch if you merge Manfred's page unmapping debug patch.

drivers/net/e100/e100_main.c

@@ -1085,10 +1085,10 @@ e100_xmit_frame(struct sk_buff *skb, struct net_device *dev)
 		goto exit1;
 	}
 
-	e100_prepare_xmit_buff(bdp, skb);
-
 	bdp->drv_stats.net_stats.tx_bytes += skb->len;
 
+	e100_prepare_xmit_buff(bdp, skb);
+
 	dev->trans_start = jiffies;
 
 exit1: