From 89c64d557dbe0bacfdd7b2872411b00cc1523d85 Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Sun, 27 Mar 2016 18:44:40 +0200
Subject: patch 7.4.1664 Problem:    Crash in :cgetexpr. Solution:   Check for
 NULL pointer. (Dominique) Add a test.

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

(limited to 'src/quickfix.c')

diff --git a/src/quickfix.c b/src/quickfix.c
index c2ff55a8c..00762bda4 100644
--- a/src/quickfix.c
+++ b/src/quickfix.c
@@ -532,7 +532,8 @@ qf_init_ext(
 		else if (tv->v_type == VAR_LIST)
 		{
 		    /* Get the next line from the supplied list */
-		    while (p_li && p_li->li_tv.v_type != VAR_STRING)
+		    while (p_li && (p_li->li_tv.v_type != VAR_STRING
+				|| p_li->li_tv.vval.v_string == NULL))
 			p_li = p_li->li_next;	/* Skip non-string items */
 
 		    if (!p_li)			/* End of the list */
-- 
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