qcacld-3.0: Fix SAP SSR reinit for uninitialized config

SSR can happen during SAP initialization. Thus check of SAP
initialization complete before attempting to restart SAP instance
during SSR.

Change-Id: Ib26116cfc33684035df692ae6c7b5d83cb0a27b8
CRs-fixed: 2005281

core/hdd/inc/wlan_hdd_main.h

@@ -108,6 +108,8 @@
 #define DEVICE_IFACE_OPENED    (5)
 #define TDLS_INIT_DONE         (6)
 #define ACS_PENDING            (7)
+#define SOFTAP_INIT_DONE       (8)
+
 /* Waiting for event for vendor acs */
 #define VENDOR_ACS_RESPONSE_PENDING   (8)
 

core/hdd/src/wlan_hdd_hostapd.c

@@ -7735,6 +7735,7 @@ int wlan_hdd_cfg80211_start_bss(hdd_adapter_t *pHostapdAdapter,
 	pSapEventCallback = hdd_hostapd_sap_event_cb;
 
 	(WLAN_HDD_GET_AP_CTX_PTR(pHostapdAdapter))->dfs_cac_block_tx = true;
+	set_bit(SOFTAP_INIT_DONE, &pHostapdAdapter->event_flags);
 
 	qdf_event_reset(&pHostapdState->qdf_event);
 	status = wlansap_start_bss(
@@ -7795,6 +7796,7 @@ int wlan_hdd_cfg80211_start_bss(hdd_adapter_t *pHostapdAdapter,
 	return 0;
 
 error:
+	clear_bit(SOFTAP_INIT_DONE, &pHostapdAdapter->event_flags);
 	if (pHostapdAdapter->sessionCtx.ap.sapConfig.acs_cfg.ch_list) {
 		qdf_mem_free(pHostapdAdapter->sessionCtx.ap.sapConfig.
 			acs_cfg.ch_list);
@@ -7980,6 +7982,7 @@ static int __wlan_hdd_cfg80211_stop_ap(struct wiphy *wiphy,
 	}
 	/* Reset WNI_CFG_PROBE_RSP Flags */
 	wlan_hdd_reset_prob_rspies(pAdapter);
+	clear_bit(SOFTAP_INIT_DONE, &pAdapter->event_flags);
 
 #ifdef WLAN_FEATURE_P2P_DEBUG
 	if ((pAdapter->device_mode == QDF_P2P_GO_MODE) &&
@@ -8069,6 +8072,7 @@ static int __wlan_hdd_cfg80211_start_ap(struct wiphy *wiphy,
 
 	ENTER();
 
+	clear_bit(SOFTAP_INIT_DONE, &pAdapter->event_flags);
 	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
 		hdd_err("Command not allowed in FTM mode");
 		return -EINVAL;

core/hdd/src/wlan_hdd_power.c

@@ -1257,8 +1257,10 @@ static void hdd_ssr_restart_sap(hdd_context_t *hdd_ctx)
 	while (NULL != adapter_node && QDF_STATUS_SUCCESS == status) {
 		adapter = adapter_node->pAdapter;
 		if (adapter && adapter->device_mode == QDF_SAP_MODE) {
-			hdd_notice("in sap mode %p", adapter);
-			wlan_hdd_start_sap(adapter, true);
+			if (test_bit(SOFTAP_INIT_DONE, &adapter->event_flags)) {
+				hdd_notice("Restart prev SAP session");
+				wlan_hdd_start_sap(adapter, true);
+			}
 		}
 		status = hdd_get_next_adapter(hdd_ctx, adapter_node, &next);
 		adapter_node = next;