[DECNET]: Make decnet code use the seq_open_private()

Just switch to the consolidated code.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/decnet/dn_neigh.c

@@ -580,24 +580,8 @@ static const struct seq_operations dn_neigh_seq_ops = {
 
 static int dn_neigh_seq_open(struct inode *inode, struct file *file)
 {
-	struct seq_file *seq;
-	int rc = -ENOMEM;
-	struct neigh_seq_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
-
-	if (!s)
-		goto out;
-
-	rc = seq_open(file, &dn_neigh_seq_ops);
-	if (rc)
-		goto out_kfree;
-
-	seq          = file->private_data;
-	seq->private = s;
-out:
-	return rc;
-out_kfree:
-	kfree(s);
-	goto out;
+	return seq_open_private(file, &dn_neigh_seq_ops,
+			sizeof(struct neigh_seq_state));
 }
 
 static const struct file_operations dn_neigh_seq_fops = {

net/decnet/dn_route.c

@@ -1739,23 +1739,8 @@ static const struct seq_operations dn_rt_cache_seq_ops = {
 
 static int dn_rt_cache_seq_open(struct inode *inode, struct file *file)
 {
-	struct seq_file *seq;
-	int rc = -ENOMEM;
-	struct dn_rt_cache_iter_state *s;
-
-	s = kzalloc(sizeof(*s), GFP_KERNEL);
-	if (!s)
-		goto out;
-	rc = seq_open(file, &dn_rt_cache_seq_ops);
-	if (rc)
-		goto out_kfree;
-	seq		= file->private_data;
-	seq->private	= s;
-out:
-	return rc;
-out_kfree:
-	kfree(s);
-	goto out;
+	return seq_open_private(file, &dn_rt_cache_seq_ops,
+			sizeof(struct dn_rt_cache_iter_state));
 }
 
 static const struct file_operations dn_rt_cache_seq_fops = {