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>
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@ -102,6 +102,7 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
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err = dev->xfrmdev_ops->xdo_dev_state_add(x);
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if (err) {
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xso->dev = NULL;
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dev_put(dev);
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return err;
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}
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