From cc9bb294919e846ef8a0731b5e9f304f95ef3bb8 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Sun, 20 Jun 2021 18:47:03 -0600
Subject: [PATCH] [blob] Fix-up recent mistake in hb_blob_create()
 destroy(user_data)

https://github.com/harfbuzz/harfbuzz/pull/3026#discussion_r653437491
---
 src/hb-blob.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/hb-blob.cc b/src/hb-blob.cc
index 4924eba75..4939bf2ff 100644
--- a/src/hb-blob.cc
+++ b/src/hb-blob.cc
@@ -73,7 +73,11 @@ hb_blob_create (const char        *data,
 		hb_destroy_func_t  destroy)
 {
   if (!length)
+  {
+    if (destroy)
+      destroy (user_data);
     return hb_blob_get_empty ();
+  }
 
   hb_blob_t *blob = hb_blob_create_or_fail (data, length, mode,
 					    user_data, destroy);