Restore a check before BN_free() that needs to exist and write it such that

the intent is more obvious.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/usr.bin/openssl/apps.c b/src/usr.bin/openssl/apps.c
index 22b6b2838b..90baf65a9f 100644
--- a/src/usr.bin/openssl/apps.c
+++ b/src/usr.bin/openssl/apps.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: apps.c,v 1.46 2018/02/07 05:47:55 jsing Exp $ */
+/* $OpenBSD: apps.c,v 1.47 2018/02/07 08:57:25 jsing Exp $ */
 /*
  * Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
  *
@@ -1425,7 +1425,8 @@ rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
         ret = 1;
 
  error:
-        BN_free(btmp);
+        if (b != btmp)
+                BN_free(btmp);
 
         return ret;
 }