From 2ea79ad83584f5d668adfb935be67ee0e0e9995b Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Sun, 18 Oct 2020 23:32:13 +0200
Subject: [PATCH] patch 8.2.1862: vim9: memory leak when compiling lambda fails

Problem:    vim9: memory leak when compiling lambda fails.
Solution:   Call clear_evalarg().
---
 src/version.c     | 2 ++
 src/vim9compile.c | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/src/version.c b/src/version.c
index 5a5344315..2e6bb9833 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1862,
 /**/
     1861,
 /**/
diff --git a/src/vim9compile.c b/src/vim9compile.c
index edfa32566..55368d1b5 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -2692,7 +2692,10 @@ compile_lambda(char_u **arg, cctx_T *cctx)
 
     // Get the funcref in "rettv".
     if (get_lambda_tv(arg, &rettv, &evalarg) != OK)
+    {
+	clear_evalarg(&evalarg, NULL);
 	return FAIL;
+    }
 
     ufunc = rettv.vval.v_partial->pt_func;
     ++ufunc->uf_refcount;
-- 
2.50.1