diff options
| author | Michal Kazior <michal.kazior@tieto.com> | 2014-01-29 10:56:20 +0400 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-02-05 00:58:10 +0400 |
| commit | cc901de1bcb0372583466075bfa62e3049dc6288 (patch) | |
| tree | ae12805ea7a7e39e55e811fcc15c9b12a68fe078 /net/mac80211/chan.c | |
| parent | c46a73f39642db4931544a9376338d05aa196df8 (diff) | |
| download | linux-cc901de1bcb0372583466075bfa62e3049dc6288.tar.xz | |
mac80211: fix sdata->radar_required locking
radar_required setting wasn't protected by
local->mtx in some places. This should prevent
from scanning/radar detection/roc colliding.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/chan.c')
| -rw-r--r-- | net/mac80211/chan.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index f43613a97dd6..42c659229a09 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -196,6 +196,8 @@ static bool ieee80211_is_radar_required(struct ieee80211_local *local) { struct ieee80211_sub_if_data *sdata; + lockdep_assert_held(&local->mtx); + rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { if (sdata->radar_required) { |