From d8fcf0a31edbe6f8456f8323cdf62ad0fe0f7b3f Mon Sep 17 00:00:00 2001
From: Chunlin Li <zhglclyx@163.com>
Date: Wed, 16 May 2018 19:01:17 +0800
Subject: [PATCH] fix: ReferenceError: m is not defined

---
 binding/nodejs/ip2region.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/binding/nodejs/ip2region.js b/binding/nodejs/ip2region.js
index 70bd0c7..26fdaef 100644
--- a/binding/nodejs/ip2region.js
+++ b/binding/nodejs/ip2region.js
@@ -121,7 +121,7 @@ ip2region.btreeSearchSync = function(ip)
         mid = ((low + high) >> 1);
         
         if (ip == headerSip[mid]) {
-            if ( m > 0) {
+            if ( mid > 0) {
                 sptr = headerPtr[mid - 1];
                 eptr = headerPtr[mid];
             } else {