From 84f3b3dd448399f9548468676e1bd1475dba8de5 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Thu, 29 Aug 2013 22:08:01 +0200
Subject: curl_multi_remove_handle: allow multiple removes

When removing an already removed handle, avoid that to ruin the
internals and just return OK instead.
---
 lib/multi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/multi.c b/lib/multi.c
index fb495e078..e723a3ebf 100644
--- a/lib/multi.c
+++ b/lib/multi.c
@@ -483,6 +483,10 @@ CURLMcode curl_multi_remove_handle(CURLM *multi_handle,
   if(!GOOD_EASY_HANDLE(curl_handle))
     return CURLM_BAD_EASY_HANDLE;
 
+  /* Prevent users from trying to remove same easy handle more than once */
+  if(!data->multi)
+    return CURLM_OK; /* it is already removed so let's say it is fine! */
+
   if(easy) {
     bool premature = (data->mstate < CURLM_STATE_COMPLETED) ? TRUE : FALSE;
     bool easy_owns_conn = (data->easy_conn &&
-- 
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