cfg80211: fix NULL ptr deref

[safe/jmp/linux-2.6] / net / mac80211 / cfg.c

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 52928ad..5608f6c 100644 (file)
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -57,19 +57,9 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
        return 0;
 }
 
-static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
+static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
 {
-       struct net_device *dev;
-       struct ieee80211_sub_if_data *sdata;
-
-       /* we're under RTNL */
-       dev = __dev_get_by_index(&init_net, ifindex);
-       if (!dev)
-               return -ENODEV;
-
-       sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-       ieee80211_if_remove(sdata);
+       ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
 
        return 0;
 }
@@ -333,6 +323,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 {
        struct ieee80211_sub_if_data *sdata = sta->sdata;
 
+       sinfo->generation = sdata->local->sta_generation;
+
        sinfo->filled = STATION_INFO_INACTIVE_TIME |
                        STATION_INFO_RX_BYTES |
                        STATION_INFO_TX_BYTES |
@@ -919,6 +911,8 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
        else
                memset(next_hop, 0, ETH_ALEN);
 
+       pinfo->generation = mesh_paths_generation;
+
        pinfo->filled = MPATH_INFO_FRAME_QLEN |
                        MPATH_INFO_DSN |
                        MPATH_INFO_METRIC |