From ef59d2d11f5aed1d0bd249e159c672df2c8ccc3d Mon Sep 17 00:00:00 2001
From: Piotr Caban <piotr@codeweavers.com>
Date: Fri, 27 Sep 2019 12:37:44 +0200
Subject: [PATCH] winebus.sys: Don't do anything in udev_driver_unload if udev
 was not initialized.

Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
---
 dlls/winebus.sys/bus_udev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/winebus.sys/bus_udev.c b/dlls/winebus.sys/bus_udev.c
index b72e6bf47d1..6fa6efb7dce 100644
--- a/dlls/winebus.sys/bus_udev.c
+++ b/dlls/winebus.sys/bus_udev.c
@@ -1488,6 +1488,9 @@ void udev_driver_unload( void )
 {
     TRACE("Unload Driver\n");
 
+    if (!deviceloop_handle)
+        return;
+
     write(deviceloop_control[1], "q", 1);
     WaitForSingleObject(deviceloop_handle, INFINITE);
     close(deviceloop_control[0]);