netdev - [PATCH -next] net_sched: fix error return code in fw_change

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Date:	Fri, 17 Jan 2014 09:53:20 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	jhs@...atatu.com, davem@...emloft.net, xiyou.wangcong@...il.com
Cc:	yongjun_wei@...ndmicro.com.cn, netdev@...r.kernel.org
Subject: [PATCH -next] net_sched: fix error return code in fw_change_attrs()

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

The error code was not set if change indev fail, so the error
condition wasn't reflected in the return value. Fix to return a
negative error code from this error handling case instead of 0.

Fixes: 2519a602c273 ('net_sched: optimize tcf_match_indev()')
Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 net/sched/cls_fw.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c
index ed00e8c..a366537 100644
--- a/net/sched/cls_fw.c
+++ b/net/sched/cls_fw.c
@@ -209,8 +209,10 @@ fw_change_attrs(struct net *net, struct tcf_proto *tp, struct fw_filter *f,
 	if (tb[TCA_FW_INDEV]) {
 		int ret;
 		ret = tcf_change_indev(net, tb[TCA_FW_INDEV]);
-		if (ret < 0)
+		if (ret < 0) {
+			err = ret;
 			goto errout;
+		}
 		f->ifindex = ret;
 	}
 #endif /* CONFIG_NET_CLS_IND */

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