From 6e863ecb50a319c5793c268c8600719a072d172e Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Fri, 27 Nov 2015 23:38:52 +0800
Subject: [PATCH] dns: Remove always true test in dns_alloc_random_port

The only way to exit the do-while loop is err != ERR_USE.
Thus get rid of the always true test.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
 src/core/dns.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/dns.c b/src/core/dns.c
index d1e4c21d..2fe13172 100644
--- a/src/core/dns.c
+++ b/src/core/dns.c
@@ -816,7 +816,7 @@ dns_alloc_random_port(void)
     }
     err = udp_bind(ret, IP_ADDR_ANY, port);
   } while (err == ERR_USE);
-  if ((err != ERR_OK) && (err != ERR_USE)) {
+  if (err != ERR_OK) {
     udp_remove(ret);
     return NULL;
   }