From 9353ba11d33c945329dd546433037154ad834bbd Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Fri, 22 May 2020 12:47:28 +0200
Subject: [PATCH] Add error handling when no physical device is found

References: https://github.com/Plagman/gamescope/issues/49
---
 src/rendervulkan.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/rendervulkan.cpp b/src/rendervulkan.cpp
index 28c6da8..f09cc94 100644
--- a/src/rendervulkan.cpp
+++ b/src/rendervulkan.cpp
@@ -452,7 +452,7 @@ CVulkanTexture::~CVulkanTexture( void )
 
 int init_device()
 {
-	uint32_t physicalDeviceCount;
+	uint32_t physicalDeviceCount = 0;
 	VkPhysicalDevice deviceHandles[MAX_DEVICE_COUNT];
 	VkQueueFamilyProperties queueFamilyProperties[MAX_QUEUE_COUNT];
 	
@@ -481,6 +481,12 @@ int init_device()
 			break;
 		}
 	}
+
+	if (!physicalDevice)
+	{
+		fprintf(stderr, "Failed to find physical device\n");
+		return false;
+	}
 	
 	vkGetPhysicalDeviceMemoryProperties( physicalDevice, &memoryProperties );