net/netfilter/x_tables.c: use __seq_open_private()
Reduce boilerplate code by using __seq_open_private() instead of seq_open()
in xt_match_open() and xt_target_open().
Signed-off-by: Rob Jones <rob.jones@codethink.co.uk>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 272ae4d..133eb47 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -1101,22 +1101,11 @@
static int xt_match_open(struct inode *inode, struct file *file)
{
- struct seq_file *seq;
struct nf_mttg_trav *trav;
- int ret;
-
- trav = kmalloc(sizeof(*trav), GFP_KERNEL);
- if (trav == NULL)
+ trav = __seq_open_private(file, &xt_match_seq_ops, sizeof(*trav));
+ if (!trav)
return -ENOMEM;
- ret = seq_open(file, &xt_match_seq_ops);
- if (ret < 0) {
- kfree(trav);
- return ret;
- }
-
- seq = file->private_data;
- seq->private = trav;
trav->nfproto = (unsigned long)PDE_DATA(inode);
return 0;
}
@@ -1165,22 +1154,11 @@
static int xt_target_open(struct inode *inode, struct file *file)
{
- struct seq_file *seq;
struct nf_mttg_trav *trav;
- int ret;
-
- trav = kmalloc(sizeof(*trav), GFP_KERNEL);
- if (trav == NULL)
+ trav = __seq_open_private(file, &xt_target_seq_ops, sizeof(*trav));
+ if (!trav)
return -ENOMEM;
- ret = seq_open(file, &xt_target_seq_ops);
- if (ret < 0) {
- kfree(trav);
- return ret;
- }
-
- seq = file->private_data;
- seq->private = trav;
trav->nfproto = (unsigned long)PDE_DATA(inode);
return 0;
}