From 740182de3cbc4298d16db17948ad4197af052c04 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Fri, 7 Oct 2016 08:30:44 +0800
Subject: [PATCH] err: Fixup error code range checking in err_to_errno

This also fixes build error in non-debug build because err_strerr is
guarded by LWIP_DEBUG.

Fixes: a1c0a0185bc0 ("bug #48823: posix errors should be removed from arch.h (to new file 'lwip/errno.h'))"
Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
 src/api/err.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/api/err.c b/src/api/err.c
index 604278bf..30348a91 100644
--- a/src/api/err.c
+++ b/src/api/err.c
@@ -106,7 +106,7 @@ lwip_strerr(err_t err)
 int
 err_to_errno(err_t err)
 {
-  if ((err > 0) || (-err >= (err_t)LWIP_ARRAYSIZE(err_strerr))) {
+  if ((err > 0) || (-err >= (err_t)LWIP_ARRAYSIZE(err_to_errno_table))) {
     return EIO;
   }
   return err_to_errno_table[-err];