package/mac80211/patches/416-mac80211-fix-netdev-notifier.patch

   1 Subject: mac80211: fix debugfs netdev rename
   2
   3 If, for some reason, a netdev has no debugfs dir, we shouldn't
   4 try to rename that dir.
   5
   6 Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
   7 Cc: Robin Holt <holt@sgi.com>
   8 ---
   9  net/mac80211/debugfs_netdev.c |    6 +++++-
  10  1 file changed, 5 insertions(+), 1 deletion(-)
  11
  12 --- everything.orig/net/mac80211/debugfs_netdev.c       2008-10-08 10:08:23.000000000 +0200
  13 +++ everything/net/mac80211/debugfs_netdev.c    2008-10-08 10:22:52.000000000 +0200
  14 @@ -481,8 +481,12 @@ static int netdev_notify(struct notifier
  15
  16         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  17
  18 -       sprintf(buf, "netdev:%s", dev->name);
  19         dir = sdata->debugfsdir;
  20 +
  21 +       if (!dir)
  22 +               return 0;
  23 +
  24 +       sprintf(buf, "netdev:%s", dev->name);
  25         if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
  26                 printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
  27                        "dir to %s\n", buf);