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xfrm: fix error flow in case of add state fails 

If add state fails in case of device offload, netdev refcount
will be negative since gc task is attempting to dev_free this state.
This is fixed by putting NULL in state dev field.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Boris Pismeny <borisp@mellanox.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Aviad Yehezkel 2018-01-18 15:41:51 +02:00 committed by Steffen Klassert
parent cc01572e2f
commit aa5dd6fa6f
1 changed files with 1 additions and 0 deletions
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1
net/xfrm/xfrm_device.c
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@ -102,6 +102,7 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
err = dev->xfrmdev_ops->xdo_dev_state_add(x);
if (err) {
xso->dev = NULL;
dev_put(dev);
return err;
}