Re: Fw: [Kernel-janitors] net/atm/clip.c: check kmem_cache_create() #1

[chas williams (contractor) <chas@xxxxxxxxxxxxxxxx>]

In message <20040204224740.B19321@xxxxxxxxxxxxxxxxxxxxxxxxxx>,Francois Romieu w
rites:
>One should probably apply the following patch on top of it btw.
>Unbalanced call to create_proc_entry() on error path.

how about the following instead?  we probably shouldnt register the
proc entry until clip_tbl is going to be ready for use anyway (the
arp table iterators should probably also use clip_tbl instead of
clip_tbl_hook).

===== net/atm/clip.c 1.30 vs edited =====
--- 1.30/net/atm/clip.c Wed Feb  4 13:07:57 2004
+++ edited/net/atm/clip.c       Thu Feb  5 07:18:03 2004
@@ -1008,14 +1008,6 @@
 
 static int __init atm_clip_init(void)
 {
-#ifdef CONFIG_PROC_FS
-       struct proc_dir_entry *p;
-
-       p = create_proc_entry("arp", S_IRUGO, atm_proc_root);
-       if (p)
-               p->proc_fops = &arp_seq_fops;
-#endif
-
        /* we should use neigh_table_init() */
        clip_tbl.lock = RW_LOCK_UNLOCKED;
        clip_tbl.kmem_cachep = kmem_cache_create(clip_tbl.id,
@@ -1032,6 +1024,16 @@
 
        clip_tbl_hook = &clip_tbl;
        register_atm_ioctl(&clip_ioctl_ops);
+
+#ifdef CONFIG_PROC_FS
+{
+       struct proc_dir_entry *p;
+
+       p = create_proc_entry("arp", S_IRUGO, atm_proc_root);
+       if (p)
+               p->proc_fops = &arp_seq_fops;
+}
+#endif
 
        return 0;
 }