mac80211: fix spinlock recursion

When STAs are expired, we need to hold the sta_lock. Using
the same lock for keys too would then mean we'd need another
key free function, and that'll just lead to confusion, so just
use a new spinlock for all key lists.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index bfcbcf5353ad..e9a978979d38 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1587,6 +1587,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 
         INIT_LIST_HEAD(&local->interfaces);
 
+        spin_lock_init(&local->key_lock);
+
         INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work);
 
         sta_info_init(local);