* grub-core/net/dns.c (hash): Use unsigned arithmetic.

ChangeLog

@@ -1,3 +1,7 @@
+2013-10-25  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/net/dns.c (hash): Use unsigned arithmetic.
+
 2013-10-25  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* grub-core/io/gzio.c (test_zlib_header): Use undigned modulo rather

grub-core/net/dns.c

@@ -114,7 +114,7 @@ struct recv_data
 static inline int
 hash (const char *str)
 {
-  int v = 0, xn = 1;
+  unsigned v = 0, xn = 1;
   const char *ptr;
   for (ptr = str; *ptr; )
     {