# HG changeset patch
# User Christian Brabandt <cb@256bit.org>
# Date 1464813007 -7200
# Node ID 062eb6d28b0c9b7de501f4d7eaf5ba32d470b850
# Parent  fe7386df8418522464be538831cce03bb5fdf0fc
commit https://github.com/vim/vim/commit/a96732150cda2f242133228579b05437a39b8daa
Author: Bram Moolenaar <Bram@vim.org>
Date:   Wed Jun 1 22:21:06 2016 +0200

    patch 7.4.1866
    Problem:    Invalid memory access when exiting with EXITFREE defined.
                (Dominique Pelle)
    Solution:   Set "really_exiting" and skip error messages.

diff --git a/src/eval.c b/src/eval.c
--- a/src/eval.c
+++ b/src/eval.c
@@ -25348,7 +25348,11 @@ func_unref(char_u *name)
     {
 	fp = find_func(name);
 	if (fp == NULL)
-	    EMSG2(_(e_intern2), "func_unref()");
+	{
+	    /* Ignore when invoked through free_all_mem(). */
+	    if (!really_exiting)
+		EMSG2(_(e_intern2), "func_unref()");
+	}
 	else if (--fp->uf_refcount <= 0)
 	{
 	    /* Only delete it when it's not being used.  Otherwise it's done
diff --git a/src/misc2.c b/src/misc2.c
--- a/src/misc2.c
+++ b/src/misc2.c
@@ -1044,6 +1044,9 @@ free_all_mem(void)
 	return;
     entered = TRUE;
 
+    /* Set this flag to indicate some errors can be ignored. */
+    really_exiting = TRUE;
+
 # ifdef FEAT_AUTOCMD
     /* Don't want to trigger autocommands from here on. */
     block_autocmds();
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1866,
+/**/
     1865,
 /**/
     1864,