netdev: 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.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
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, 32 insertions, 52 deletions

diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 6c395fcece5..d263eee2652 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -4347,24 +4347,28 @@ static int proc_config_open( struct inode *inode, struct file *file );
 static int proc_wepkey_open( struct inode *inode, struct file *file );
 
 static const struct file_operations proc_statsdelta_ops = {
+        .owner          = THIS_MODULE,
         .read           = proc_read,
         .open           = proc_statsdelta_open,
         .release        = proc_close
 };
 
 static const struct file_operations proc_stats_ops = {
+        .owner          = THIS_MODULE,
         .read           = proc_read,
         .open           = proc_stats_open,
         .release        = proc_close
 };
 
 static const struct file_operations proc_status_ops = {
+        .owner          = THIS_MODULE,
         .read           = proc_read,
         .open           = proc_status_open,
         .release        = proc_close
 };
 
 static const struct file_operations proc_SSID_ops = {
+        .owner          = THIS_MODULE,
         .read           = proc_read,
         .write          = proc_write,
         .open           = proc_SSID_open,
@@ -4372,6 +4376,7 @@ static const struct file_operations proc_SSID_ops = {
 };
 
 static const struct file_operations proc_BSSList_ops = {
+        .owner          = THIS_MODULE,
         .read           = proc_read,
         .write          = proc_write,
         .open           = proc_BSSList_open,
@@ -4379,6 +4384,7 @@ static const struct file_operations proc_BSSList_ops = {
 };
 
 static const struct file_operations proc_APList_ops = {
+        .owner          = THIS_MODULE,
         .read           = proc_read,
         .write          = proc_write,
         .open           = proc_APList_open,
@@ -4386,6 +4392,7 @@ static const struct file_operations proc_APList_ops = {
 };
 
 static const struct file_operations proc_config_ops = {
+        .owner          = THIS_MODULE,
         .read           = proc_read,
         .write          = proc_write,
         .open           = proc_config_open,
@@ -4393,6 +4400,7 @@ static const struct file_operations proc_config_ops = {
 };
 
 static const struct file_operations proc_wepkey_ops = {
+        .owner          = THIS_MODULE,
         .read           = proc_read,
         .write          = proc_write,
         .open           = proc_wepkey_open,
@@ -4411,10 +4419,6 @@ struct proc_data {
         void (*on_close) (struct inode *, struct file *);
 };
 
-#ifndef SETPROC_OPS
-#define SETPROC_OPS(entry, ops) (entry)->proc_fops = &(ops)
-#endif
-
 static int setup_proc_entry( struct net_device *dev,
                              struct airo_info *apriv ) {
         struct proc_dir_entry *entry;
@@ -4430,100 +4434,76 @@ static int setup_proc_entry( struct net_device *dev,
         apriv->proc_entry->owner = THIS_MODULE;
 
         /* Setup the StatsDelta */
-        entry = create_proc_entry("StatsDelta",
-                                  S_IFREG | (S_IRUGO&proc_perm),
-                                  apriv->proc_entry);
+        entry = proc_create_data("StatsDelta",
+                                 S_IFREG | (S_IRUGO&proc_perm),
+                                 apriv->proc_entry, &proc_statsdelta_ops, dev);
         if (!entry)
                 goto fail_stats_delta;
         entry->uid = proc_uid;
         entry->gid = proc_gid;
-        entry->data = dev;
-        entry->owner = THIS_MODULE;
-        SETPROC_OPS(entry, proc_statsdelta_ops);
 
         /* Setup the Stats */
-        entry = create_proc_entry("Stats",
-                                  S_IFREG | (S_IRUGO&proc_perm),
-                                  apriv->proc_entry);
+        entry = proc_create_data("Stats",
+                                 S_IFREG | (S_IRUGO&proc_perm),
+                                 apriv->proc_entry, &proc_stats_ops, dev);
         if (!entry)
                 goto fail_stats;
         entry->uid = proc_uid;
         entry->gid = proc_gid;
-        entry->data = dev;
-        entry->owner = THIS_MODULE;
-        SETPROC_OPS(entry, proc_stats_ops);
 
         /* Setup the Status */
-        entry = create_proc_entry("Status",
-                                  S_IFREG | (S_IRUGO&proc_perm),
-                                  apriv->proc_entry);
+        entry = proc_create_data("Status",
+                                 S_IFREG | (S_IRUGO&proc_perm),
+                                 apriv->proc_entry, &proc_status_ops, dev);
         if (!entry)
                 goto fail_status;
         entry->uid = proc_uid;
         entry->gid = proc_gid;
-        entry->data = dev;
-        entry->owner = THIS_MODULE;
-        SETPROC_OPS(entry, proc_status_ops);
 
         /* Setup the Config */
-        entry = create_proc_entry("Config",
-                                  S_IFREG | proc_perm,
-                                  apriv->proc_entry);
+        entry = proc_create_data("Config",
+                                 S_IFREG | proc_perm,
+                                 apriv->proc_entry, &proc_config_ops, dev);
         if (!entry)
                 goto fail_config;
         entry->uid = proc_uid;
         entry->gid = proc_gid;
-        entry->data = dev;
-        entry->owner = THIS_MODULE;
-        SETPROC_OPS(entry, proc_config_ops);
 
         /* Setup the SSID */
-        entry = create_proc_entry("SSID",
-                                  S_IFREG | proc_perm,
-                                  apriv->proc_entry);
+        entry = proc_create_data("SSID",
+                                 S_IFREG | proc_perm,
+                                 apriv->proc_entry, &proc_SSID_ops, dev);
         if (!entry)
                 goto fail_ssid;
         entry->uid = proc_uid;
         entry->gid = proc_gid;
-        entry->data = dev;
-        entry->owner = THIS_MODULE;
-        SETPROC_OPS(entry, proc_SSID_ops);
 
         /* Setup the APList */
-        entry = create_proc_entry("APList",
-                                  S_IFREG | proc_perm,
-                                  apriv->proc_entry);
+        entry = proc_create_data("APList",
+                                 S_IFREG | proc_perm,
+                                 apriv->proc_entry, &proc_APList_ops, dev);
         if (!entry)
                 goto fail_aplist;
         entry->uid = proc_uid;
         entry->gid = proc_gid;
-        entry->data = dev;
-        entry->owner = THIS_MODULE;
-        SETPROC_OPS(entry, proc_APList_ops);
 
         /* Setup the BSSList */
-        entry = create_proc_entry("BSSList",
-                                  S_IFREG | proc_perm,
-                                  apriv->proc_entry);
+        entry = proc_create_data("BSSList",
+                                 S_IFREG | proc_perm,
+                                 apriv->proc_entry, &proc_BSSList_ops, dev);
         if (!entry)
                 goto fail_bsslist;
         entry->uid = proc_uid;
         entry->gid = proc_gid;
-        entry->data = dev;
-        entry->owner = THIS_MODULE;
-        SETPROC_OPS(entry, proc_BSSList_ops);
 
         /* Setup the WepKey */
-        entry = create_proc_entry("WepKey",
-                                  S_IFREG | proc_perm,
-                                  apriv->proc_entry);
+        entry = proc_create_data("WepKey",
+                                 S_IFREG | proc_perm,
+                                 apriv->proc_entry, &proc_wepkey_ops, dev);
         if (!entry)
                 goto fail_wepkey;
         entry->uid = proc_uid;
         entry->gid = proc_gid;
-        entry->data = dev;
-        entry->owner = THIS_MODULE;
-        SETPROC_OPS(entry, proc_wepkey_ops);
 
         return 0;