qcacmn: Fix deadlock for race condition

When connect from wpa_supplicant and roam from F/W happens at same
time, supplicant hold cm cm_req_lock and wait rsp from scheduler
thread, sheduler thread is blocked to wait for cm_req_lock.

Change-Id: I6b9010972d29be9a32d3b85ee72891ed62b50801
CRs-Fixed: 3087193

umac/mlme/connection_mgr/core/src/wlan_cm_connect.c

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2012-2015, 2020-2021 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -29,6 +30,7 @@
 #ifdef CONN_MGR_ADV_FEATURE
 #include "wlan_blm_api.h"
 #include "wlan_cm_roam_api.h"
+#include "wlan_tdls_api.h"
 #endif
 #include <wlan_utility.h>
 #include <wlan_mlo_mgr_sta.h>
@@ -978,6 +980,18 @@ static void cm_set_fils_wep_key(struct cnx_mgr *cm_ctx,
 	cm_set_key(cm_ctx, true, 0, &resp->bssid);
 	cm_set_key(cm_ctx, false, 0, &broadcast_mac);
 }
+
+static void cm_teardown_tdls(struct wlan_objmgr_vdev *vdev)
+{
+	struct wlan_objmgr_psoc *psoc;
+
+	psoc = wlan_vdev_get_psoc(vdev);
+	if (!psoc)
+		return;
+
+	wlan_tdls_teardown_links_sync(psoc);
+}
+
 #else
 
 static inline
@@ -1112,6 +1126,8 @@ post_err:
 	return qdf_status;
 }
 
+static inline void cm_teardown_tdls(struct wlan_objmgr_vdev *vdev) {}
+
 #endif /* CONN_MGR_ADV_FEATURE */
 
 static void cm_connect_prepare_scan_filter(struct wlan_objmgr_pdev *pdev,
@@ -2319,6 +2335,9 @@ QDF_STATUS cm_connect_start_req(struct wlan_objmgr_vdev *vdev,
 
 	cm_set_crypto_params_from_ie(&connect_req->req);
 
+	if (!wlan_vdev_mlme_is_mlo_link_vdev(vdev))
+		cm_teardown_tdls(vdev);
+
 	status = cm_sm_deliver_event(vdev, WLAN_CM_SM_EV_CONNECT_REQ,
 				     sizeof(*connect_req), connect_req);