pimd: MLD packets always have an interface

If a packet doesn't have an interface, we're gonna crash 2 lines below.
An assert is a little more useful... and makes clang-SA not complain
about it.

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/pimd/pim6_mld.c b/pimd/pim6_mld.c
index a871837701..59cd9aea5f 100644
--- a/pimd/pim6_mld.c
+++ b/pimd/pim6_mld.c
@@ -468,6 +468,8 @@ static void gm_sg_update(struct gm_sg *sg, bool has_expired)
 
 static void gm_packet_free(struct gm_packet_state *pkt)
 {
+	assert(pkt->iface);
+
 	gm_packet_expires_del(pkt->iface->expires, pkt);
 	gm_packets_del(pkt->subscriber->packets, pkt);
 	gm_subscriber_drop(&pkt->subscriber);