X25: Check for errors in x25_init

Adds error checking to x25_init.

Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 16 insertions, 3 deletions

diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index f327ef5cb0e9..e3219e4cd044 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1721,18 +1721,31 @@ static int __init x25_init(void)
         if (rc != 0)
                 goto out;
 
-        sock_register(&x25_family_ops);
+        rc = sock_register(&x25_family_ops);
+        if (rc != 0)
+                goto out_proto;
 
         dev_add_pack(&x25_packet_type);
 
-        register_netdevice_notifier(&x25_dev_notifier);
+        rc = register_netdevice_notifier(&x25_dev_notifier);
+        if (rc != 0)
+                goto out_sock;
 
         printk(KERN_INFO "X.25 for Linux Version 0.2\n");
 
         x25_register_sysctl();
-        x25_proc_init();
+        rc = x25_proc_init();
+        if (rc != 0)
+                goto out_dev;
 out:
         return rc;
+out_dev:
+        unregister_netdevice_notifier(&x25_dev_notifier);
+out_sock:
+        sock_unregister(AF_X25);
+out_proto:
+        proto_unregister(&x25_proto);
+        goto out;
 }
 module_init(x25_init);