From: Justin Pettit <jpettit@nicira.com>
Date: Fri, 2 Jan 2009 19:04:21 +0000 (-0800)
Subject: Correct VERIFY_NUL_STRING back-port that required a "0" instead of a null.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c1cc04c21b0fea06d603da4bc4eeef75bafa8062;p=openvswitch

Correct VERIFY_NUL_STRING back-port that required a "0" instead of a null.

The VERIFY_NUL_STRING back-port to older kernels was looking for an ASCII
zero instead of the null-string terminator.
---

diff --git a/datapath/linux-2.6/compat-2.6/include/net/netlink.h b/datapath/linux-2.6/compat-2.6/include/net/netlink.h
index 0be53157..e0d594d7 100644
--- a/datapath/linux-2.6/compat-2.6/include/net/netlink.h
+++ b/datapath/linux-2.6/compat-2.6/include/net/netlink.h
@@ -9,7 +9,7 @@
 static inline int VERIFY_NUL_STRING(struct nlattr *attr)
 {
 	return (!attr || (nla_len(attr)
-			  && memchr(nla_data(attr), '0', nla_len(attr)))
+			  && memchr(nla_data(attr), '\0', nla_len(attr)))
 		? 0 : EINVAL);
 }
 #else