isdn: use non-racy method for proc entries creation

Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data
be setup before gluing PDE to main tree.

Add correct ->owner to proc_fops to fix reading/module unloading race.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Karsten Keil <kkeil@suse.de>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/drivers/isdn/hardware/eicon/divasproc.c b/drivers/isdn/hardware/eicon/divasproc.c
index 0632a2606998..fae895828a17 100644
--- a/drivers/isdn/hardware/eicon/divasproc.c
+++ b/drivers/isdn/hardware/eicon/divasproc.c
@@ -125,15 +125,11 @@ static const struct file_operations divas_fops = {
 
 int create_divas_proc(void)
 {
-        divas_proc_entry = create_proc_entry(divas_proc_name,
-                                             S_IFREG | S_IRUGO,
-                                             proc_net_eicon);
+        proc_create(divas_proc_name, S_IFREG | S_IRUGO, proc_net_eicon,
+                    &divas_fops);
         if (!divas_proc_entry)
                 return (0);
 
-        divas_proc_entry->proc_fops = &divas_fops;
-        divas_proc_entry->owner = THIS_MODULE;
-
         return (1);
 }