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6lowpan: release device on error path

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We recently added a new error path and it needs a dev_put().

Fixes: 7adac1ec81 ('6lowpan: Only make 6lowpan links to IEEE802154 devices')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Carpenter 2013-11-07 10:44:45 +03:00 committed by David S. Miller
parent eb072c4b8d
commit 78032f9b3e
1 changed files with 3 additions and 1 deletions
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4
net/ieee802154/6lowpan.c
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@ -1358,8 +1358,10 @@ static int lowpan_newlink(struct net *src_net, struct net_device *dev,
real_dev = dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK]));
if (!real_dev)
return -ENODEV;
if (real_dev->type != ARPHRD_IEEE802154)
if (real_dev->type != ARPHRD_IEEE802154) {
dev_put(real_dev);
return -EINVAL;
}
lowpan_dev_info(dev)->real_dev = real_dev;
lowpan_dev_info(dev)->fragment_tag = 0;