mac80211: add missing rcu_barrier
mac80211 uses call_rcu() with functions that are
defined in the module, so it must use rcu_barrier()
at module exit time.
Luckily, this seems to not be a problem in practice
as module unload and unregistration takes a long
time and probably does multiple synchronize_rcu().
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 96ab130..866f269 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1090,6 +1090,8 @@
ieee80211s_stop();
ieee80211_iface_exit();
+
+ rcu_barrier();
}