netdev - [patch net-next v3 15/28] team: rtnl

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Message-Id: <1449141150-8172-16-git-send-email-jiri@resnulli.us>
Date:	Thu,  3 Dec 2015 12:12:17 +0100
From:	Jiri Pirko <jiri@...nulli.us>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net, idosch@...lanox.com, eladr@...lanox.com,
	yotamg@...lanox.com, ogerlitz@...lanox.com, j.vosburgh@...il.com,
	vfalico@...il.com, gospo@...ulusnetworks.com,
	dsa@...ulusnetworks.com, nikolay@...ulusnetworks.com,
	pjonnala@...adcom.com, f.fainelli@...il.com, sfeldma@...il.com,
	john.fastabend@...il.com, roopa@...ulusnetworks.com, andrew@...n.ch
Subject: [patch net-next v3 15/28] team: rtnl_lock for options set

From: Jiri Pirko <jiri@...lanox.com>

During options set, there will be needed to hold rtnl_mutex in order to
safely call netdev notifiers.

Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
 drivers/net/team/team.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index dd1504b..9814133 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2422,9 +2422,13 @@ static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info)
 	struct nlattr *nl_option;
 	LIST_HEAD(opt_inst_list);
 
+	rtnl_lock();
+
 	team = team_nl_team_get(info);
-	if (!team)
-		return -EINVAL;
+	if (!team) {
+		err = -EINVAL;
+		goto rtnl_unlock;
+	}
 
 	err = -EINVAL;
 	if (!info->attrs[TEAM_ATTR_LIST_OPTION]) {
@@ -2551,7 +2555,8 @@ static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info)
 
 team_put:
 	team_nl_team_put(team);
-
+rtnl_unlock:
+	rtnl_unlock();
 	return err;
 }
 
-- 
1.9.3

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