Do not call freeaddrinfo() with a NULL parameter.

OK jsing@

1 files changed, 3 insertions, 2 deletions

diff --git a/src/lib/libcrypto/bio/b_sock.c b/src/lib/libcrypto/bio/b_sock.c
index 48f39838b3..cfa48c6860 100644
--- a/src/lib/libcrypto/bio/b_sock.c
+++ b/src/lib/libcrypto/bio/b_sock.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: b_sock.c,v 1.67 2017/04/30 17:54:11 beck Exp $ */
+/* $OpenBSD: b_sock.c,v 1.68 2018/02/06 14:45:52 bluhm Exp $ */
 /*
  * Copyright (c) 2017 Bob Beck <beck@openbsd.org>
  *
@@ -184,7 +184,8 @@ BIO_get_accept_socket(char *host, int bind_mode)
 
 err:
         free(str);
-        freeaddrinfo(res);
+        if (res != NULL)
+                freeaddrinfo(res);
         if ((ret == 0) && (s != -1)) {
                 close(s);
                 s = -1;