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ospfd: lp may be null, make sure it isn't

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We lookup the lp value and lookup_linkparams_by_instance
can return NULL if something has gone terribly wrong.
Make sure that lp is not NULL.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2018-05-31 20:55:59 -04:00
parent 752ee70be8
commit 20a7c80cc2
1 changed files with 3 additions and 2 deletions
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5
ospfd/ospf_te.c
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@ -1451,6 +1451,8 @@ static struct ospf_lsa *ospf_mpls_te_lsa_refresh(struct ospf_lsa *lsa)
zlog_warn("ospf_mpls_te_lsa_refresh: Invalid parameter?");
lsa->data->ls_age =
htons(OSPF_LSA_MAXAGE); /* Flush it anyway. */
ospf_opaque_lsa_flush_schedule(lsa);
return NULL;
}
/* Check if lp was not disable in the interval */
@ -1463,8 +1465,7 @@ static struct ospf_lsa *ospf_mpls_te_lsa_refresh(struct ospf_lsa *lsa)
/* If the lsa's age reached to MaxAge, start flushing procedure. */
if (IS_LSA_MAXAGE(lsa)) {
if (lp)
UNSET_FLAG(lp->flags, LPFLG_LSA_ENGAGED);
UNSET_FLAG(lp->flags, LPFLG_LSA_ENGAGED);
ospf_opaque_lsa_flush_schedule(lsa);
return NULL;
}