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check pointers against NULL

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This commit is contained in:
Kip Macy 2008-12-16 06:01:08 +00:00
parent 204cbef71b
commit 75bab8b81d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=186170
1 changed files with 3 additions and 3 deletions
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6
sys/netinet6/raw_ip6.c
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@ -232,7 +232,7 @@ rip6_input(struct mbuf **mp, int *offp, int proto)
/*
* Check AH/ESP integrity.
*/
if (last && ipsec6_in_reject(m, last)) {
if ((last != NULL) && ipsec6_in_reject(m, last)) {
m_freem(m);
V_ipsec6stat.in_polvio++;
V_ip6stat.ip6s_delivered--;
@ -357,7 +357,7 @@ rip6_output(m, va_alist)
INP_WLOCK(in6p);
dst = &dstsock->sin6_addr;
if (control) {
if (control != NULL) {
if ((error = ip6_setpktopts(control, &opt,
in6p->in6p_outputopts, so->so_cred,
so->so_proto->pr_protocol)) != 0) {
@ -491,7 +491,7 @@ rip6_output(m, va_alist)
m_freem(m);
freectl:
if (control) {
if (control != NULL) {
ip6_clearpktopts(&opt, -1);
m_freem(control);
}