From: Thomas Graf <tgraf@suug.ch>
Date: Thu, 28 Oct 2010 22:45:45 +0000 (+0200)
Subject: basic: Only add ematches to message if available
X-Git-Tag: libnl3_0~81
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2f867686ac987df8555727b894a4e2ebba26fbd9;p=libnl

basic: Only add ematches to message if available
---

diff --git a/lib/route/cls/basic.c b/lib/route/cls/basic.c
index 835fd08..94f0cf7 100644
--- a/lib/route/cls/basic.c
+++ b/lib/route/cls/basic.c
@@ -121,7 +121,11 @@ static int basic_get_opts(struct rtnl_cls *cls, struct nl_msg *msg)
 
 	NLA_PUT_U32(msg, TCA_BASIC_CLASSID, b->b_target);
 
-	return rtnl_ematch_fill_attr(msg, TCA_BASIC_EMATCHES, b->b_ematch);
+	if (b->b_mask & BASIC_ATTR_EMATCH &&
+	    rtnl_ematch_fill_attr(msg, TCA_BASIC_EMATCHES, b->b_ematch) < 0)
+		goto nla_put_failure;
+	
+	return 0;
 
 nla_put_failure:
 	return -NLE_NOMEM;