netdev - [PATCH net-next] dev: ensure that dellink is set before calling it

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Message-Id: <1395925862-19354-1-git-send-email-nicolas.dichtel@6wind.com>
Date:	Thu, 27 Mar 2014 14:11:02 +0100
From:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, Nicolas Dichtel <nicolas.dichtel@...nd.com>
Subject: [PATCH net-next] dev: ensure that dellink is set before calling it

default_device_exit_batch() was calling it as soon as dev->rtnl_link_ops was
set.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>
---

I target this patch to net-next because I did not found an in-tree driver
which is impacted.

 net/core/dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 48dd323d5918..f4010d16b351 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6940,7 +6940,7 @@ static void __net_exit default_device_exit_batch(struct list_head *net_list)
 	rtnl_lock_unregistering(net_list);
 	list_for_each_entry(net, net_list, exit_list) {
 		for_each_netdev_reverse(net, dev) {
-			if (dev->rtnl_link_ops)
+			if (dev->rtnl_link_ops && dev->rtnl_link_ops->dellink)
 				dev->rtnl_link_ops->dellink(dev, &dev_kill_list);
 			else
 				unregister_netdevice_queue(dev, &dev_kill_list);
-- 
1.8.5.4

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