1 files changed, 9 insertions, 7 deletions

diff --git a/src/lib/libcrypto/hmac/hm_ameth.c b/src/lib/libcrypto/hmac/hm_ameth.c
index dfd7169ba0..5b52af658c 100644
--- a/src/lib/libcrypto/hmac/hm_ameth.c
+++ b/src/lib/libcrypto/hmac/hm_ameth.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: hm_ameth.c,v 1.17 2022/11/19 04:32:49 tb Exp $ */
+/* $OpenBSD: hm_ameth.c,v 1.18 2022/11/19 04:36:52 tb Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2007.
  */
@@ -84,13 +84,15 @@ hmac_size(const EVP_PKEY *pkey)
 static void
 hmac_key_free(EVP_PKEY *pkey)
 {
-        ASN1_OCTET_STRING *os = pkey->pkey.ptr;
+        ASN1_OCTET_STRING *os;
 
-        if (os) {
-                if (os->data)
-                        explicit_bzero(os->data, os->length);
-                ASN1_OCTET_STRING_free(os);
-        }
+        if ((os = pkey->pkey.ptr) == NULL)
+                return;
+
+        if (os->data != NULL)
+                explicit_bzero(os->data, os->length);
+
+        ASN1_OCTET_STRING_free(os);
 }
 
 static int