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 Cc: Robin Holt --- 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);