From a95426e7c4e31813c29d413c8c59d7e644201f0b Mon Sep 17 00:00:00 2001
From: akallabeth <akallabeth@posteo.net>
Date: Sun, 21 Apr 2024 12:34:39 +0200
Subject: [PATCH] [core,update] return if gdi is NULL

---
 libfreerdp/core/update.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libfreerdp/core/update.c b/libfreerdp/core/update.c
index 53e0f9c7a..5d40385a5 100644
--- a/libfreerdp/core/update.c
+++ b/libfreerdp/core/update.c
@@ -3331,7 +3331,9 @@ BOOL update_begin_paint(rdpUpdate* update)
 
 	/* Reset the invalid regions, we start a new frame here. */
 	rdpGdi* gdi = update->context->gdi;
-	WINPR_ASSERT(gdi);
+	if (!gdi)
+		return FALSE;
+
 	if (gdi->hdc && gdi->primary && gdi->primary->hdc)
 	{
 		HGDI_WND hwnd = gdi->primary->hdc->hwnd;