From acee5f88ee6f2edee8f4d29337ff8b6d719a45f1 Mon Sep 17 00:00:00 2001
From: Karsten Blees <karsten.blees@gmail.com>
Date: Tue, 30 Jun 2015 16:34:13 +0200
Subject: [PATCH] config.c: fix writing config files on Windows network shares

Renaming to an existing file doesn't work on Windows network shares if the
target file is open.

munmap() the old config file before commit_lock_file.

This fixes https://github.com/git-for-windows/git/issues/226.

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 config.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/config.c b/config.c
index 098da3066c..7f6e27ac8a 100644
--- a/config.c
+++ b/config.c
@@ -2135,6 +2135,9 @@ int git_config_set_multivar_in_file(const char *config_filename,
 					  contents_sz - copy_begin) <
 			    contents_sz - copy_begin)
 				goto write_err_out;
+
+		munmap(contents, contents_sz);
+		contents = NULL;
 	}
 
 	if (commit_lock_file(lock) < 0) {