From d8e278b6b3afe1dbba8a2dff4f519ef5597794f8 Mon Sep 17 00:00:00 2001
From: Jacob Barthelmeh <jacob@wolfssl.com>
Date: Mon, 18 Jun 2018 18:15:26 -0600
Subject: [PATCH] revert free on sig and add comment

---
 wolfcrypt/src/asn.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
index d4ebf7b4d..3c74d2f65 100644
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@@ -10886,7 +10886,8 @@ static int SignCert(int requestSz, int sType, byte* buffer, word32 buffSz,
     sigSz = MakeSignature(certSignCtx, buffer, requestSz, certSignCtx->sig,
         MAX_ENCODED_SIG_SZ, rsaKey, eccKey, ed25519Key, rng, sType, heap);
     if (sigSz == WC_PENDING_E) {
-        XFREE(certSignCtx->sig, heap, DYNAMIC_TYPE_TMP_BUFFER);
+        /* Not free'ing certSignCtx->sig here because it could still be in use
+         * with async operations. */
         return sigSz;
     }