[src/trunk]: src/sys/netipsec Fix splx isn't called on some error paths

[ozaki-r <ozaki-r%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/bd0d4084b0ac
branches:  trunk
changeset: 825401:bd0d4084b0ac
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Thu Jul 13 01:48:52 2017 +0000

description:
Fix splx isn't called on some error paths

diffstat:

 sys/netipsec/ipsec_output.c |  17 ++++++++++-------
 1 files changed, 10 insertions(+), 7 deletions(-)

diffs (41 lines):

diff -r b37066d134b1 -r bd0d4084b0ac sys/netipsec/ipsec_output.c
--- a/sys/netipsec/ipsec_output.c       Thu Jul 13 01:22:44 2017 +0000
+++ b/sys/netipsec/ipsec_output.c       Thu Jul 13 01:48:52 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ipsec_output.c,v 1.52 2017/07/13 01:22:44 ozaki-r Exp $        */
+/*     $NetBSD: ipsec_output.c,v 1.53 2017/07/13 01:48:52 ozaki-r Exp $        */
 
 /*-
  * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
@@ -29,7 +29,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ipsec_output.c,v 1.52 2017/07/13 01:22:44 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ipsec_output.c,v 1.53 2017/07/13 01:48:52 ozaki-r Exp $");
 
 /*
  * IPsec output processing.
@@ -712,14 +712,17 @@
                struct mbuf *mp;
 
                /* Fix IPv6 header payload length. */
-               if (m->m_len < sizeof(struct ip6_hdr))
-                       if ((m = m_pullup(m,sizeof(struct ip6_hdr))) == NULL)
-                               return ENOBUFS;
+               if (m->m_len < sizeof(struct ip6_hdr)) {
+                       if ((m = m_pullup(m,sizeof(struct ip6_hdr))) == NULL) {
+                               error = ENOBUFS;
+                               goto bad;
+                       }
+               }
 
                if (m->m_pkthdr.len - sizeof(*ip6) > IPV6_MAXPACKET) {
                        /* No jumbogram support. */
-                       m_freem(m);
-                       return ENXIO;   /*XXX*/
+                       error = ENXIO;   /*XXX*/
+                       goto bad;
                }
 
                ip6 = mtod(m, struct ip6_hdr *);