--- zzzz-none-000/linux-4.4.60/net/wireless/wext-compat.c	2017-04-08 07:53:53.000000000 +0000
+++ hawkeye-5590-729/linux-4.4.60/net/wireless/wext-compat.c	2022-03-30 14:21:53.000000000 +0000
@@ -821,7 +821,7 @@
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
-	struct cfg80211_chan_def chandef;
+	struct cfg80211_chan_def chandef = {};
 	int ret;
 
 	switch (wdev->iftype) {