[PATCH] IB/ipoib: small fixes

IPoIB small fixes: Initialize path->ah to NULL, and fix dereference after free
of neigh in error path of neigh_add_path().
Signed-off-by: Shirley Ma <xma@us.ibm.com>
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/infiniband/ulp/ipoib/ipoib_main.c

@@ -348,6 +348,7 @@ static struct ipoib_path *path_rec_create(struct net_device *dev,
 
 	path->dev          = dev;
 	path->pathrec.dlid = 0;
+	path->ah           = NULL;
 
 	skb_queue_head_init(&path->queue);
 
@@ -450,8 +451,8 @@ static void neigh_add_path(struct sk_buff *skb, struct net_device *dev)
 err:
 	*to_ipoib_neigh(skb->dst->neighbour) = NULL;
 	list_del(&neigh->list);
-	kfree(neigh);
 	neigh->neighbour->ops->destructor = NULL;
+	kfree(neigh);
 
 	++priv->stats.tx_dropped;
 	dev_kfree_skb_any(skb);