Explain the weird order of doing things in X509_ALGOR_set0()

diff --git a/lib/libcrypto/asn1/x_algor.c b/lib/libcrypto/asn1/x_algor.c
index 59e2adc..76b7802 100644 (file)
--- a/lib/libcrypto/asn1/x_algor.c
+++ b/lib/libcrypto/asn1/x_algor.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: x_algor.c,v 1.35 2023/11/01 20:25:27 tb Exp $ */
+/* $OpenBSD: x_algor.c,v 1.36 2023/11/01 20:26:24 tb Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2000.
  */
@@ -187,6 +187,7 @@ X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int parameter_type,
        if (alg == NULL)
                return 0;
 
+       /* Set parameter first to preserve public API behavior on failure. */
        if (!X509_ALGOR_set0_parameter(alg, parameter_type, parameter_value))
                return 0;