From cec0734b4c3a396d22e0c9e30f613d8255f431bf Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Mon, 20 Nov 2017 22:59:19 +0100
Subject: Curl_llist_remove: fix potential NULL pointer deref

Fixes a scan-build warning.
---
 lib/llist.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/llist.c b/lib/llist.c
index 4bb0a51b8..f8769c2af 100644
--- a/lib/llist.c
+++ b/lib/llist.c
@@ -106,7 +106,11 @@ Curl_llist_remove(struct curl_llist *list, struct curl_llist_element *e,
       e->next->prev = NULL;
   }
   else {
-    e->prev->next = e->next;
+    if(!e->prev)
+      list->head = e->next;
+    else
+      e->prev->next = e->next;
+
     if(!e->next)
       list->tail = e->prev;
     else
-- 
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