net: fix nla_policy_len to actually _iterate_ over the policy

Currently nla_policy_len always returns n * NLA_HDRLEN: It loops, but does not advance it's iterator. NLA_UNSPEC == 0 does not contain a .len in any policy. Trivially fixed by adding p++. Signed-off-by: Lars Ellenberg <[email protected]> Signed-off-by: David S. Miller <[email protected]>
RyanHsu · Feb 28, 2011 · e3fa3af · e3fa3af
1 parent f5a4532
commit e3fa3af
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/nlattr.c b/lib/nlattr.c
@@ -148,7 +148,7 @@ nla_policy_len(const struct nla_policy *p, int n)
 {
 	int i, len = 0;
 
-	for (i = 0; i < n; i++) {
+	for (i = 0; i < n; i++, p++) {
 		if (p->len)
 			len += nla_total_size(p->len);
 		else if (nla_attr_minlen[p->type])