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authorJohannes Berg <johannes@sipsolutions.net>2008-10-08 10:18:36 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-10-14 20:48:00 -0400
commitc74e90a9e37c4a3923905189a6ebbd7ef61e6e67 (patch)
treec22f8d8fcf806dc281d5fb69327d11769593116c /net
parentd5d7c584810b3be2b70c979af3283a1e48b6574d (diff)
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> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/debugfs_netdev.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 2a451562377..2ad504fc341 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -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);