diff options
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/debugfs_netdev.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index 8165df578c9..5c7bbe07b79 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -537,6 +537,7 @@ static int netdev_notify(struct notifier_block *nb, { struct net_device *dev = ndev; struct dentry *dir; + struct ieee80211_local *local; struct ieee80211_sub_if_data *sdata; char buf[10+IFNAMSIZ]; @@ -549,10 +550,19 @@ static int netdev_notify(struct notifier_block *nb, if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid) return 0; - sdata = IEEE80211_DEV_TO_SUB_IF(dev); + /* + * Do not use IEEE80211_DEV_TO_SUB_IF because that + * BUG_ONs for the master netdev which we need to + * handle here. + */ + sdata = netdev_priv(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); |