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