qcacld-3.0: Add error handling to component init

During insmod, the various driver components are initialized. HDD,
however, does not pay attention to any of the return statuses. Add error
handling for component initialization in HDD.

Change-Id: Ia8e3114685086964acacdee481a9fec8b7ef8a00
CRs-Fixed: 2314569

core/hdd/src/wlan_hdd_main.c

@@ -12545,28 +12545,76 @@ static void wlan_hdd_state_ctrl_param_destroy(void)
 }
 
 /**
- * component_init - API to init cld component's
+ * hdd_component_init() - Initialize all components
  *
- * Return: None
+ * Return: QDF_STATUS
  */
-static void component_init(void)
+static QDF_STATUS hdd_component_init(void)
 {
-	ucfg_mlme_init();
-	ucfg_fwol_init();
-	disa_init();
-	pmo_init();
-	ucfg_ocb_init();
-	ipa_init();
-	ucfg_action_oui_init();
+	QDF_STATUS status;
+
+	/* initialize converged components */
+	status = dispatcher_init();
+	if (QDF_IS_STATUS_ERROR(status))
+		return status;
+
+	/* initialize non-converged components */
+	status = ucfg_mlme_init();
+	if (QDF_IS_STATUS_ERROR(status))
+		goto dispatcher_deinit;
+
+	status = ucfg_fwol_init();
+	if (QDF_IS_STATUS_ERROR(status))
+		goto mlme_deinit;
+
+	status = disa_init();
+	if (QDF_IS_STATUS_ERROR(status))
+		goto fwol_deinit;
+
+	status = pmo_init();
+	if (QDF_IS_STATUS_ERROR(status))
+		goto disa_deinit;
+
+	status = ucfg_ocb_init();
+	if (QDF_IS_STATUS_ERROR(status))
+		goto pmo_deinit;
+
+	status = ipa_init();
+	if (QDF_IS_STATUS_ERROR(status))
+		goto ocb_deinit;
+
+	status = ucfg_action_oui_init();
+	if (QDF_IS_STATUS_ERROR(status))
+		goto ipa_deinit;
+
+	return QDF_STATUS_SUCCESS;
+
+ipa_deinit:
+	ipa_deinit();
+ocb_deinit:
+	ucfg_ocb_deinit();
+pmo_deinit:
+	pmo_deinit();
+disa_deinit:
+	disa_deinit();
+fwol_deinit:
+	ucfg_fwol_deinit();
+mlme_deinit:
+	ucfg_mlme_deinit();
+dispatcher_deinit:
+	dispatcher_deinit();
+
+	return status;
 }
 
 /**
- * component_deinit - API to deinit cld component's
+ * hdd_component_deinit() - Deinitialize all components
  *
  * Return: None
  */
-static void component_deinit(void)
+static void hdd_component_deinit(void)
 {
+	/* deinitialize non-converged components */
 	ucfg_action_oui_deinit();
 	ipa_deinit();
 	ucfg_ocb_deinit();
@@ -12574,6 +12622,9 @@ static void component_deinit(void)
 	disa_deinit();
 	ucfg_fwol_deinit();
 	ucfg_mlme_deinit();
+
+	/* deinitialize converged components */
+	dispatcher_deinit();
 }
 
 QDF_STATUS hdd_component_psoc_open(struct wlan_objmgr_psoc *psoc)
@@ -12632,6 +12683,7 @@ void hdd_component_pdev_close(struct wlan_objmgr_pdev *pdev)
  */
 static int __hdd_module_init(void)
 {
+	QDF_STATUS status;
 	int ret = 0;
 
 	pr_err("%s: Loading driver v%s (%s)\n",
@@ -12647,10 +12699,11 @@ static int __hdd_module_init(void)
 		goto err_hdd_init;
 	}
 
-	dispatcher_init();
-
-	/* Ensure to call post objmgr init */
-	component_init();
+	status = hdd_component_init();
+	if (QDF_IS_STATUS_ERROR(status)) {
+		ret = qdf_status_to_os_return(status);
+		goto hdd_deinit;
+	}
 
 	qdf_wake_lock_create(&wlan_wake_lock, "wlan");
 
@@ -12672,14 +12725,17 @@ static int __hdd_module_init(void)
 	pr_info("%s: driver loaded\n", WLAN_MODULE_NAME);
 
 	return 0;
+
 out:
 	qdf_wake_lock_destroy(&wlan_wake_lock);
-	component_deinit();
-	dispatcher_deinit();
+	hdd_component_deinit();
+
+hdd_deinit:
 	hdd_deinit();
 
 err_hdd_init:
 	pld_deinit();
+
 	return ret;
 }
 
@@ -12712,10 +12768,7 @@ static void __hdd_module_exit(void)
 
 	qdf_wake_lock_destroy(&wlan_wake_lock);
 
-	/* Ensure to call prior to objmgr deinit */
-	component_deinit();
-
-	dispatcher_deinit();
+	hdd_component_deinit();
 
 	hdd_sysfs_destroy_version_interface();