Commit c74e90a9 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
Browse files

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: default avatarJohannes Berg <johannes@sipsolutions.net>
Cc: Robin Holt <holt@sgi.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent d5d7c584
......@@ -545,8 +545,12 @@ static int netdev_notify(struct notifier_block *nb,
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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