qcacld-3.0: Handle TDLS peer count logic for SSR scenario

Always decrement tdls_soc_obj->set_state_info.set_state_cnt
in case TDLS is disconnected due to STA disconnection
triggered as part of SSR.

If it is not, then for SSR, after the system restarts,
this count is used and can be interpreted as second
tdls connection.
Currently, multiple tdls links are not supported, so
TDLS set state CMD (WMI_TDLS_SET_STATE_CMDID) won't be
sent to fw, although peer create and peer assoc will
go to firmware which results in crash.

Change-Id: Ib764cd04a04fab237840cdffafa9752fbe202418
CRs-Fixed: 2931199

components/tdls/core/src/wlan_tdls_main.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2021 The Linux Foundation. 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
@@ -1187,6 +1187,15 @@ void tdls_send_update_to_fw(struct tdls_vdev_priv_obj *tdls_vdev_obj,
 	tdls_info_to_fw->tdls_discovery_wake_timeout =
 		tdls_soc_obj->tdls_configs.tdls_discovery_wake_timeout;
 
+	/**
+	 * set_state_cnt should always decrement in case of sta disconnection.
+	 * If it is not, then in case where STA disconnection happens due to
+	 * SSR where tdls_update_fw_tdls_state() will return failure,
+	 * tdls count has to be decremented irrepective of success or failure
+	 */
+	if (!sta_connect_event)
+		tdls_soc_obj->set_state_info.set_state_cnt--;
+
 	status = tdls_update_fw_tdls_state(tdls_soc_obj, tdls_info_to_fw);
 	if (QDF_STATUS_SUCCESS != status)
 		goto done;
@@ -1194,8 +1203,6 @@ void tdls_send_update_to_fw(struct tdls_vdev_priv_obj *tdls_vdev_obj,
 	if (sta_connect_event) {
 		tdls_soc_obj->set_state_info.set_state_cnt++;
 		tdls_soc_obj->set_state_info.vdev_id = session_id;
-	} else {
-		tdls_soc_obj->set_state_info.set_state_cnt--;
 	}
 
 	tdls_debug("TDLS Set state cnt %d",