From b584d0773466827964494c7f25bace731b283d22 Mon Sep 17 00:00:00 2001
From: akallabeth <akallabeth@posteo.net>
Date: Wed, 20 May 2020 08:59:44 +0200
Subject: [PATCH] Fixed #6197: NULL check in urbdrc

---
 channels/urbdrc/client/urbdrc_main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/channels/urbdrc/client/urbdrc_main.c b/channels/urbdrc/client/urbdrc_main.c
index 5c8483b0f..6f383ecb7 100644
--- a/channels/urbdrc/client/urbdrc_main.c
+++ b/channels/urbdrc/client/urbdrc_main.c
@@ -668,12 +668,13 @@ static UINT urbdrc_plugin_initialize(IWTSPlugin* pPlugin, IWTSVirtualChannelMana
 {
 	UINT status;
 	URBDRC_PLUGIN* urbdrc = (URBDRC_PLUGIN*)pPlugin;
-	IUDEVMAN* udevman = urbdrc->udevman;
+	IUDEVMAN* udevman;
 	char channelName[sizeof(URBDRC_CHANNEL_NAME)] = { URBDRC_CHANNEL_NAME };
 
-	if (!urbdrc)
+	if (!urbdrc || !urbdrc->udevman)
 		return ERROR_INVALID_PARAMETER;
 
+	udevman = urbdrc->udevman;
 	urbdrc->listener_callback =
 	    (URBDRC_LISTENER_CALLBACK*)calloc(1, sizeof(URBDRC_LISTENER_CALLBACK));