From 02dcde08386441d5a89dbcb602a1ad367a506cc0 Mon Sep 17 00:00:00 2001
From: Vladimir Matveev <vladima@microsoft.com>
Date: Thu, 9 Feb 2017 11:41:36 -0800
Subject: [PATCH] win,fs: avoid double freeing uv_fs_event_t.dirw

Set `dirw` to `pathw` after `uv_fs_event_start` is known to be completed
successfully.

Fixes: https://github.com/libuv/libuv/issues/1221
PR-URL: https://github.com/libuv/libuv/pull/1222
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
---
 src/win/fs-event.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/win/fs-event.c b/src/win/fs-event.c
index 03e4adc0..05fc1d01 100644
--- a/src/win/fs-event.c
+++ b/src/win/fs-event.c
@@ -188,7 +188,6 @@ int uv_fs_event_start(uv_fs_event_t* handle,
 
   if (is_path_dir) {
      /* path is a directory, so that's the directory that we will watch. */
-    handle->dirw = pathw;
     dir_to_watch = pathw;
   } else {
     /*
@@ -274,6 +273,8 @@ int uv_fs_event_start(uv_fs_event_t* handle,
     goto error;
   }
 
+  assert(is_path_dir ? pathw != NULL : pathw == NULL);
+  handle->dirw = pathw;
   handle->req_pending = 1;
   return 0;