From 0bece94486e0914d2247765f34446691ee84a2ee Mon Sep 17 00:00:00 2001
From: liexusong <liexusong@qq.com>
Date: Thu, 23 Mar 2017 01:45:23 +0800
Subject: [PATCH] fix bugs

---
 beast.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/beast.c b/beast.c
index e66e851..0dc27f0 100644
--- a/beast.c
+++ b/beast.c
@@ -1044,18 +1044,16 @@ static int validate_networkcard()
 		}
 
 		address = get_mac_address(networkcard_start);
-		if (!address) {
-			return -1;
+		if (address) {
+			for (ptr = allow_networkcards; *ptr; ptr++) {
+                if (!strcasecmp(address, *ptr)) {
+                    free(address); /* release buffer */
+                    return 0;
+                }
+            }
+            free(address);
 		}
 
-		for (ptr = allow_networkcards; *ptr; ptr++) {
-			if (!strcasecmp(address, *ptr)) {
-				free(address); /* release buffer */
-				return 0;
-			}
-		}
-		free(address);
-
 		if (endof_networkcard) {
 			break;
 		}