mac80211: fix scan_sdata assignment

We need to use RCU to assign scan_sdata.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 169da0742c817507e09a0119f1d1105077784231..7644181cb6b48ad4595586d9e230e34fbb3f73ea 100644 (file)
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -304,7 +304,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted,
        if (local->scan_req != local->int_scan_req)
                cfg80211_scan_done(local->scan_req, aborted);
        local->scan_req = NULL;
-       local->scan_sdata = NULL;
+       rcu_assign_pointer(local->scan_sdata, NULL);
 
        local->scanning = 0;
        local->scan_channel = NULL;