From ce17d031805ab548f26f5b2d519fb8e3bf1bbff1 Mon Sep 17 00:00:00 2001
From: Björn Linse <bjorn.linse@gmail.com>
Date: Wed, 20 Apr 2016 13:44:12 +0200
Subject: eval: let getreg() return valid list for an undefined register

vim-patch:7.4.1755
this prevents a crash when the list is used in setreg() later
---
 src/nvim/eval.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'src/nvim/eval.c')

diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index e9b1df6367..b51480afc6 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -10096,9 +10096,10 @@ static void f_getreg(typval_T *argvars, typval_T *rettv)
     rettv->v_type = VAR_LIST;
     rettv->vval.v_list = 
       get_reg_contents(regname, (arg2 ? kGRegExprSrc : 0) | kGRegList);
-    if (rettv->vval.v_list != NULL) {
-      rettv->vval.v_list->lv_refcount++;
+    if (rettv->vval.v_list == NULL) {
+      rettv->vval.v_list = list_alloc();
     }
+    rettv->vval.v_list->lv_refcount++;
   } else {
     rettv->v_type = VAR_STRING;
     rettv->vval.v_string = get_reg_contents(regname, arg2 ? kGRegExprSrc : 0);
-- 
cgit