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lagg(4): added NULL check for pfil_run_hooks 

pointed out by ozaki-r@, thanks.
This commit is contained in:
yamaguchi 2024-04-04 08:31:58 +00:00
parent 187fba3a2e
commit 0abd478027
1 changed files with 13 additions and 4 deletions
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17
sys/net/lagg/if_lagg.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_lagg.c,v 1.62 2024/04/04 08:29:25 yamaguchi Exp $ */
/* $NetBSD: if_lagg.c,v 1.63 2024/04/04 08:31:58 yamaguchi Exp $ */
/*
* Copyright (c) 2005, 2006 Reyk Floeter <reyk@openbsd.org>
@ -20,7 +20,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_lagg.c,v 1.62 2024/04/04 08:29:25 yamaguchi Exp $");
__KERNEL_RCSID(0, "$NetBSD: if_lagg.c,v 1.63 2024/04/04 08:31:58 yamaguchi Exp $");
#ifdef _KERNEL_OPT
#include "opt_inet.h"
@ -1068,8 +1068,12 @@ lagg_output(struct lagg_softc *sc, struct lagg_port *lp, struct mbuf *m)
mflags = m->m_flags;
error = pfil_run_hooks(ifp->if_pfil, &m, ifp, PFIL_OUT);
if (error != 0)
if (error != 0) {
if (m != NULL) {
m_freem(m);
}
return;
}
bpf_mtap(ifp, m, BPF_D_OUT);
error = lagg_port_xmit(lp, m);
@ -1175,8 +1179,13 @@ lagg_input_ethernet(struct ifnet *ifp_port, struct mbuf *m)
if_statadd(ifp_port, if_ibytes, m->m_pkthdr.len);
if (pfil_run_hooks(ifp_port->if_pfil, &m,
ifp_port, PFIL_IN) != 0)
ifp_port, PFIL_IN) != 0) {
if (m != NULL) {
m_freem(m);
m = NULL;
}
goto out;
}
m = lagg_proto_input(lp->lp_softc, lp, m);
if (m != NULL) {