From 46247ca0298c33c69d5aca1e37fdbe204d989b3d Mon Sep 17 00:00:00 2001
From: Lei Zhang <lezh@cypress.com>
Date: Mon, 26 Aug 2019 12:11:45 -0700
Subject: [PATCH] Bringdown interface when stopping softap

The interface should be brought down when stopping softap.
---
 .../TARGET_WHD/interface/WhdSoftAPInterface.cpp    | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/features/netsocket/emac-drivers/TARGET_WHD/interface/WhdSoftAPInterface.cpp b/features/netsocket/emac-drivers/TARGET_WHD/interface/WhdSoftAPInterface.cpp
index 17f99978b8..a13aff0b72 100644
--- a/features/netsocket/emac-drivers/TARGET_WHD/interface/WhdSoftAPInterface.cpp
+++ b/features/netsocket/emac-drivers/TARGET_WHD/interface/WhdSoftAPInterface.cpp
@@ -173,7 +173,19 @@ int WhdSoftAPInterface::stop(void)
         return NSAPI_ERROR_DHCP_FAILURE;
     }
     _dhcp_server.reset();
-    return whd_wifi_stop_ap(_whd_emac.ifp);
+
+    // bring down
+    int err = _interface->bringdown();
+    if (err) {
+        return err;
+    }
+
+    // stop softap
+    whd_result_t res = whd_wifi_stop_ap(_whd_emac.ifp);
+    if (res != WHD_SUCCESS) {
+        return whd_toerror(res);
+    }
+    return NSAPI_ERROR_OK;
 }
 
 int WhdSoftAPInterface::remove_custom_ie(const whd_custom_ie_info_t *ie_info)