diff options
Diffstat (limited to 'net/ipv4/xfrm4_policy.c')
| -rw-r--r-- | net/ipv4/xfrm4_policy.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c index c40a71b74dba..d903c8bdffcd 100644 --- a/net/ipv4/xfrm4_policy.c +++ b/net/ipv4/xfrm4_policy.c @@ -153,14 +153,21 @@ __xfrm4_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int dst_prev = *dst_p; i = 0; + err = -ENODEV; for (; dst_prev != &rt->u.dst; dst_prev = dst_prev->child) { struct xfrm_dst *x = (struct xfrm_dst*)dst_prev; x->u.rt.fl = *fl; dst_prev->xfrm = xfrm[i++]; dst_prev->dev = rt->u.dst.dev; - if (rt->u.dst.dev) - dev_hold(rt->u.dst.dev); + if (!rt->u.dst.dev) + goto error; + dev_hold(rt->u.dst.dev); + + x->u.rt.idev = in_dev_get(rt->u.dst.dev); + if (!x->u.rt.idev) + goto error; + dst_prev->obsolete = -1; dst_prev->flags |= DST_HOST; dst_prev->lastuse = jiffies; @@ -181,8 +188,6 @@ __xfrm4_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int x->u.rt.rt_dst = rt0->rt_dst; x->u.rt.rt_gateway = rt0->rt_gateway; x->u.rt.rt_spec_dst = rt0->rt_spec_dst; - x->u.rt.idev = rt0->idev; - in_dev_hold(rt0->idev); header_len -= x->u.dst.xfrm->props.header_len; trailer_len -= x->u.dst.xfrm->props.trailer_len; } |