From d7e4230538b57c399937e513e05cab60073b6780 Mon Sep 17 00:00:00 2001
From: Patrick Monnerat <patrick@monnerat.net>
Date: Fri, 13 Oct 2017 17:16:57 +0100
Subject: mime: do not call failf() if easy handle is NULL.

---
 lib/mime.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/mime.c b/lib/mime.c
index c337a35c9..c3c370891 100644
--- a/lib/mime.c
+++ b/lib/mime.c
@@ -1437,7 +1437,8 @@ CURLcode Curl_mime_set_subparts(curl_mimepart *part,
       while(root->parent && root->parent->parent)
         root = root->parent->parent;
       if(subparts == root) {
-        failf(part->easy, "Can't add itself as a subpart!");
+        if(part->easy)
+          failf(part->easy, "Can't add itself as a subpart!");
         return CURLE_BAD_FUNCTION_ARGUMENT;
       }
     }
-- 
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