1 files changed, 11 insertions, 3 deletions

diff --git a/src/regress/lib/libcrypto/bio/bio_chain.c b/src/regress/lib/libcrypto/bio/bio_chain.c
index 81f9b82040..34c7594417 100644
--- a/src/regress/lib/libcrypto/bio/bio_chain.c
+++ b/src/regress/lib/libcrypto/bio/bio_chain.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: bio_chain.c,v 1.9 2022/12/09 07:47:59 tb Exp $        */
+/*      $OpenBSD: bio_chain.c,v 1.10 2022/12/09 07:53:06 tb Exp $       */
 /*
  * Copyright (c) 2022 Theo Buehler <tb@openbsd.org>
  *
@@ -201,8 +201,12 @@ walk_forward(BIO *start, BIO *end, size_t expected_len, size_t i, size_t j,
         int ret = 0;
 
         if (start == NULL || end == NULL) {
-                if (expected_len != 0)
+                if (expected_len != 0) {
+                        fprintf(stderr, "%s case (%zu, %zu) %s: empty chain "
+                            "with expected length %zu > 0\n",
+                            fn, i, j, description, expected_len);
                         goto err;
+                }
                 goto done;
         }
 
@@ -244,8 +248,12 @@ walk_backward(BIO *start, BIO *end, size_t expected_len, size_t i, size_t j,
         int ret = 0;
 
         if (start == NULL || end == NULL) {
-                if (expected_len != 0)
+                if (expected_len != 0) {
+                        fprintf(stderr, "%s case (%zu, %zu) %s: empty chain "
+                            "with expected length %zu > 0\n",
+                            fn, i, j, description, expected_len);
                         goto err;
+                }
                 goto done;
         }