From 92034e9f7d605440be625235132ca162b4b169aa Mon Sep 17 00:00:00 2001
From: Zhao Yakui <yakui.zhao@intel.com>
Date: Tue, 16 Aug 2022 11:36:08 +0800
Subject: [PATCH] ACRN:DM:VGPU: Add more check to avoid no geometry parameter
 for virtio-gpu

When no geometry parameter is passed for virtio-gpu, it should not be started.

Tracked-On: #7988
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Sun Peng <peng.p.sun@linux.intel.com>
Reviewed-by: Wang Yu <yu1.wang@intel.com>
---
 devicemodel/hw/vdisplay_sdl.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/devicemodel/hw/vdisplay_sdl.c b/devicemodel/hw/vdisplay_sdl.c
index 22dd81b7f..ed1edf86f 100644
--- a/devicemodel/hw/vdisplay_sdl.c
+++ b/devicemodel/hw/vdisplay_sdl.c
@@ -1301,6 +1301,10 @@ gfx_ui_init()
 		return -1;
 	}
 
+	if (vdpy.vscrs_num <= 0) {
+		pr_err("Incorrect geometry parameter for virtio-gpu\n");
+		return -1;
+	}
 	num_pscreen = SDL_GetNumVideoDisplays();
 
 	for (i = 0; i < vdpy.vscrs_num; i++) {