[Bugfix] fix sta disconnect may core dump

Change-Id: I0da7a003fc5ae368a2466187eecabc15867d00b7
diff --git a/lib/liblynq-wifi6/libwifi6.c b/lib/liblynq-wifi6/libwifi6.c
index 11155d7..682fa6d 100755
--- a/lib/liblynq-wifi6/libwifi6.c
+++ b/lib/liblynq-wifi6/libwifi6.c
@@ -984,7 +984,7 @@
 
     DO_OK_FAIL_REQUEST(LYNQ_WIFI_CMD);
 
-    system("connmanctl tether wifi off");
+//    system("connmanctl tether wifi off");
 	
 	return 0;
 }
@@ -1491,6 +1491,8 @@
     CHECK_IDX(idx, CTRL_STA);
 
     curr_state.ap = ≈
+    curr_state.state = NULL;
+
     if (inner_get_status_info(CTRL_STA, &curr_state) != 0) {
         return 0;
     }