From c05bd22afecb95afb76244801c86f2504fc8e85e Mon Sep 17 00:00:00 2001
From: Michael Stapelberg <stapelberg@google.com>
Date: Fri, 1 Jun 2018 22:18:15 +0200
Subject: [PATCH] make temporary errors temporary, not permanent

---
 internal/dhcp4/dhcp4.go | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/internal/dhcp4/dhcp4.go b/internal/dhcp4/dhcp4.go
index 40ce67f..67ed1c1 100644
--- a/internal/dhcp4/dhcp4.go
+++ b/internal/dhcp4/dhcp4.go
@@ -78,9 +78,7 @@ func (c *Client) ObtainOrRenew() bool {
 		dhcp.RandRead = c.randRead
 		c.dhcp = dhcp
 	})
-	if c.err != nil {
-		return false
-	}
+	// TODO: renew if c.ack != nil, fall back if renewal fails
 	ok, ack, err := c.dhcpRequest()
 	if err != nil {
 		c.err = err