mac80211: add missing CSA locking

The patch adds a missing sdata lock and adds a few
lockdeps for easier maintenance.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index bd55115c8922..f70e9cd10552 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -864,6 +864,8 @@ ieee80211_mesh_process_chnswitch(struct ieee80211_sub_if_data *sdata,
         int err;
         u32 sta_flags;
 
+        sdata_assert_lock(sdata);
+
         sta_flags = IEEE80211_STA_DISABLE_VHT;
         switch (sdata->vif.bss_conf.chandef.width) {
         case NL80211_CHAN_WIDTH_20_NOHT: