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-rw-r--r--src/vnet/ip/ip4_to_ip6.h13
1 files changed, 5 insertions, 8 deletions
diff --git a/src/vnet/ip/ip4_to_ip6.h b/src/vnet/ip/ip4_to_ip6.h
index 96b8bf1e676..965d27c3393 100644
--- a/src/vnet/ip/ip4_to_ip6.h
+++ b/src/vnet/ip/ip4_to_ip6.h
@@ -310,14 +310,11 @@ icmp_to_icmp6 (vlib_buffer_t * p, ip4_to_ip6_set_fn_t fn, void *ctx,
else if (PREDICT_TRUE (inner_ip4->protocol == IP_PROTOCOL_UDP))
{
inner_L4_checksum = &((udp_header_t *) (inner_ip4 + 1))->checksum;
- if (!*inner_L4_checksum)
- {
- return -1;
- }
- *inner_L4_checksum =
- ip_csum_fold (ip_csum_sub_even
- (*inner_L4_checksum,
- *((u64 *) (&inner_ip4->src_address))));
+ if (*inner_L4_checksum)
+ *inner_L4_checksum =
+ ip_csum_fold (ip_csum_sub_even
+ (*inner_L4_checksum,
+ *((u64 *) (&inner_ip4->src_address))));
}
else if (inner_ip4->protocol == IP_PROTOCOL_ICMP)
{