--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1139,6 +1139,10 @@ static void __exit ieee80211_exit(void)
 	rc80211_minstrel_ht_exit();
 	rc80211_minstrel_exit();
 
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37))
+	flush_scheduled_work();
+#endif
+
 	ieee80211s_stop();
 
 	ieee80211_iface_exit();