From 20d5027ab105ac1c174c7eefc00c7e482e99da7a Mon Sep 17 00:00:00 2001
From: Pavel Charvat <pchar@ucw.cz>
Date: Mon, 12 Feb 2018 12:17:52 +0100
Subject: [PATCH] Main recio: Fixed crashes when a second rec_io_add() followed
 rec_io_del().

---
 ucw/main-rec.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/ucw/main-rec.c b/ucw/main-rec.c
index f13758e3..d3d4a589 100644
--- a/ucw/main-rec.c
+++ b/ucw/main-rec.c
@@ -58,13 +58,18 @@ rec_io_del(struct main_rec_io *rio)
   hook_del(&rio->start_read_hook);
   file_del(&rio->file);
 
+  rio->file.read_handler = NULL;
+  rio->read_started = rio->read_running = 0;
+  rio->read_avail = rio->read_prev_avail = 0;
   if (rio->read_buf)
     {
       DBG("RIO: Freeing read buffer");
       xfree(rio->read_buf);
-      rio->read_buf = NULL;
+      rio->read_buf = rio->read_rec_start = NULL;
     }
 
+  rio->file.write_handler = NULL;
+  rio->write_watermark = 0;
   struct rio_buffer *b;
   while ((b = clist_remove_head(&rio->idle_write_buffers)) || (b = clist_remove_head(&rio->busy_write_buffers)))
     {
-- 
2.39.5