Merge branch 'stable/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

[mv-sheeva.git] / net / mac80211 / debugfs_key.c

diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index f7ef3477c24a13d5eea1cd587266fddaff68da6d..33c58b85c9113b6caaae68b068a68c0df4a01c4c 100644 (file)
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -241,16 +241,12 @@ void ieee80211_debugfs_key_add(struct ieee80211_key *key)
        if (!key->debugfs.dir)
                return;
 
-       rcu_read_lock();
-       sta = rcu_dereference(key->sta);
-       if (sta)
+       sta = key->sta;
+       if (sta) {
                sprintf(buf, "../../stations/%pM", sta->sta.addr);
-       rcu_read_unlock();
-
-       /* using sta as a boolean is fine outside RCU lock */
-       if (sta)
                key->debugfs.stalink =
                        debugfs_create_symlink("station", key->debugfs.dir, buf);
+       }
 
        DEBUGFS_ADD(keylen);
        DEBUGFS_ADD(flags);
@@ -286,7 +282,8 @@ void ieee80211_debugfs_key_update_default(struct ieee80211_sub_if_data *sdata)
        lockdep_assert_held(&sdata->local->key_mtx);
 
        if (sdata->default_unicast_key) {
-               key = sdata->default_unicast_key;
+               key = key_mtx_dereference(sdata->local,
+                                         sdata->default_unicast_key);
                sprintf(buf, "../keys/%d", key->debugfs.cnt);
                sdata->debugfs.default_unicast_key =
                        debugfs_create_symlink("default_unicast_key",
@@ -297,7 +294,8 @@ void ieee80211_debugfs_key_update_default(struct ieee80211_sub_if_data *sdata)
        }
 
        if (sdata->default_multicast_key) {
-               key = sdata->default_multicast_key;
+               key = key_mtx_dereference(sdata->local,
+                                         sdata->default_multicast_key);
                sprintf(buf, "../keys/%d", key->debugfs.cnt);
                sdata->debugfs.default_multicast_key =
                        debugfs_create_symlink("default_multicast_key",
@@ -316,9 +314,8 @@ void ieee80211_debugfs_key_add_mgmt_default(struct ieee80211_sub_if_data *sdata)
        if (!sdata->debugfs.dir)
                return;
 
-       /* this is running under the key lock */
-
-       key = sdata->default_mgmt_key;
+       key = key_mtx_dereference(sdata->local,
+                                 sdata->default_mgmt_key);
        if (key) {
                sprintf(buf, "../keys/%d", key->debugfs.cnt);
                sdata->debugfs.default_mgmt_key =