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xfrm: avoid possible oopse in xfrm_alloc_dst

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Commit 80c802f307 (xfrm: cache bundles instead of policies for
outgoing flows) introduced possible oopse when dst_alloc returns NULL.

Signed-off-by: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hiroaki SHIMODA 2011-02-10 23:08:33 -08:00 committed by David S. Miller
parent 520732af91
commit 0b15093219
1 changed files with 5 additions and 2 deletions
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5
net/xfrm/xfrm_policy.c
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@ -1340,10 +1340,13 @@ static inline struct xfrm_dst *xfrm_alloc_dst(struct net *net, int family)
default: default:
BUG(); BUG();
} }
xdst = dst_alloc(dst_ops) ?: ERR_PTR(-ENOBUFS); xdst = dst_alloc(dst_ops);
xfrm_policy_put_afinfo(afinfo); xfrm_policy_put_afinfo(afinfo);
if (likely(xdst))
xdst->flo.ops = &xfrm_bundle_fc_ops; xdst->flo.ops = &xfrm_bundle_fc_ops;
else
xdst = ERR_PTR(-ENOBUFS);
return xdst; return xdst;
} }