From 820cf09c98706f71d4b02b6c25e62db15830f3fb Mon Sep 17 00:00:00 2001
From: Janos Guljas <janos@resenje.org>
Date: Tue, 19 Dec 2017 23:05:23 +0100
Subject: [PATCH] cmd/swarm: return error early in buildConfig function

---
 cmd/swarm/config.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cmd/swarm/config.go b/cmd/swarm/config.go
index 566b00f48..a3c03c00d 100644
--- a/cmd/swarm/config.go
+++ b/cmd/swarm/config.go
@@ -98,6 +98,9 @@ func buildConfig(ctx *cli.Context) (config *bzzapi.Config, err error) {
 	config = bzzapi.NewDefaultConfig()
 	//first load settings from config file (if provided)
 	config, err = configFileOverride(config, ctx)
+	if err != nil {
+		return nil, err
+	}
 	//override settings provided by environment variables
 	config = envVarsOverride(config)
 	//override settings provided by command line