qcacld-3.0: Fix rtnl_lock usage in HDD startup failure path

Currently in the error-handling path of hdd_wlan_startup() there are
two issues with respect to the rtnl_lock:
1) hdd_close_all_adapters() may be called with the rtnl_lock parameter
   set to false even though the rtnl_lock is being held.
2) the function could possibly take the rtnl_lock and never release it.

Fix these issues in hdd_wlan_startup().

Change-Id: Iaa69d540dd7663355ceb66f6bc8ba0e5dd8c228e
CRs-Fixed: 2001611

core/hdd/src/wlan_hdd_main.c

@@ -8300,7 +8300,7 @@ int hdd_wlan_startup(struct device *dev)
 	if (IS_ERR(adapter)) {
 		hdd_alert("Failed to open interface, adapter is NULL");
 		ret = PTR_ERR(adapter);
-		goto err_ipa_cleanup;
+		goto err_release_rtnl_lock;
 	}
 
 	hif_sc = cds_get_context(QDF_MODULE_ID_HIF);
@@ -8395,12 +8395,12 @@ err_debugfs_exit:
 	hdd_debugfs_exit(adapter);
 
 err_close_adapter:
-	hdd_close_all_adapters(hdd_ctx, false);
+	hdd_close_all_adapters(hdd_ctx, rtnl_held);
 
+err_release_rtnl_lock:
 	if (rtnl_held)
 		hdd_release_rtnl_lock();
 
-err_ipa_cleanup:
 	hdd_ipa_cleanup(hdd_ctx);
 
 err_wiphy_unregister: