Fix return value of BIO_free

CLA: trivial

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16682)

diff --git a/crypto/bio/bio_lib.c b/crypto/bio/bio_lib.c
index a378f186d7b4a07612755b376207c536fcbc490c..25df70f76088abb89e7ec2df9e38b1d0c3acf44d 100644 (file)
--- a/crypto/bio/bio_lib.c
+++ b/crypto/bio/bio_lib.c
@@ -140,7 +140,7 @@ int BIO_free(BIO *a)
     if (HAS_CALLBACK(a)) {
         ret = (int)bio_call_callback(a, BIO_CB_FREE, NULL, 0, 0, 0L, 1L, NULL);
         if (ret <= 0)
-            return ret;
+            return 0;
     }
 
     if ((a->method != NULL) && (a->method->destroy != NULL))