From 3b6b528ea98ca7bf8cd5ae1cf103203e3ca67814 Mon Sep 17 00:00:00 2001
From: Rob Pilling <robpilling@gmail.com>
Date: Thu, 10 Oct 2019 23:40:57 +0100
Subject: [PATCH] vim-patch:8.1.1962: leaking memory when using tagfunc()

Problem:    Leaking memory when using tagfunc().
Solution:   Free the user_data. (Dominique Pelle, closes vim/vim#4886)
https://github.com/vim/vim/commit/55008aad50601cae079037fda8fb434cde70c0f4
---
 src/nvim/window.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/nvim/window.c b/src/nvim/window.c
index 976f1d8ff0..ce5be8e904 100644
--- a/src/nvim/window.c
+++ b/src/nvim/window.c
@@ -4642,8 +4642,10 @@ win_free (
 
   xfree(wp->w_lines);
 
-  for (i = 0; i < wp->w_tagstacklen; ++i)
+  for (i = 0; i < wp->w_tagstacklen; i++) {
     xfree(wp->w_tagstack[i].tagname);
+    xfree(wp->w_tagstack[i].user_data);
+  }
 
   xfree(wp->w_localdir);