From 6276f3d39abfab6da46414dd8f9cd89e068d141c Mon Sep 17 00:00:00 2001
From: Armin Novak <armin.novak@thincast.com>
Date: Thu, 27 Oct 2016 14:36:48 +0200
Subject: [PATCH] Added log messages for invalid function call.

---
 libfreerdp/core/freerdp.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/libfreerdp/core/freerdp.c b/libfreerdp/core/freerdp.c
index 35dcae1..7f1ba17 100644
--- a/libfreerdp/core/freerdp.c
+++ b/libfreerdp/core/freerdp.c
@@ -37,6 +37,7 @@
 #include <winpr/string.h>
 #include <winpr/stream.h>
 #include <winpr/wtsapi.h>
+#include <winpr/debug.h>
 
 #include <freerdp/freerdp.h>
 #include <freerdp/error.h>
@@ -63,7 +64,12 @@ void freerdp_channel_init_thread_context(rdpContext* context)
 freerdp* freerdp_channel_get_instance(void)
 {
 	if (!s_TLSContext)
+	{
+		WLog_ERR(TAG,
+		         "Funcion was called from thread that did not call freerdp_channel_init_thread_context");
+		winpr_log_backtrace(TAG, WLOG_ERROR, 20);
 		return NULL;
+	}
 
 	return s_TLSContext->instance;
 }
@@ -76,7 +82,12 @@ rdpContext* freerdp_channel_get_context(void)
 rdpChannels* freerdp_channel_get_channels_context(void)
 {
 	if (!s_TLSContext)
+	{
+		WLog_ERR(TAG,
+		         "Funcion was called from thread that did not call freerdp_channel_init_thread_context");
+		winpr_log_backtrace(TAG, WLOG_ERROR, 20);
 		return NULL;
+	}
 
 	return s_TLSContext->channels;
 }
-- 
2.7.4