From: deasung.kim <deasung.kim@samsung.com>
Date: Thu, 22 Sep 2016 07:09:27 +0000 (+0900)
Subject: swapchain: fix management of tpl_display reference count
X-Git-Tag: submit/submit/tizen/20170906.070327/20170906.070422~22
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F01%2F89101%2F3;p=platform%2Fcore%2Fuifw%2Fvulkan-wsi-tizen.git

swapchain: fix management of tpl_display reference count

	increase reference count of tpl_display when the vulkan-wsi-tizen calls tpl_display_get()
	it prevents segfault/abort when the vk_DestroySwapchainKHR is called.

Change-Id: I89e8162bbe63682e7617d1279b83b2af33fed942
---

diff --git a/src/wsi/swapchain.c b/src/wsi/swapchain.c
index f2e3626..8d5be33 100644
--- a/src/wsi/swapchain.c
+++ b/src/wsi/swapchain.c
@@ -208,12 +208,12 @@ vk_DestroySwapchainKHR(VkDevice						 device,
 	tpl_surface_destroy_swapchain(chain->tpl_surface);
 	free(chain->buffers);
 
-	if (chain->tpl_display)
-		tpl_object_unreference((tpl_object_t *)chain->tpl_display);
-
 	if (chain->tpl_surface)
 		tpl_object_unreference((tpl_object_t *)chain->tpl_surface);
 
+	if (chain->tpl_display)
+		tpl_object_unreference((tpl_object_t *)chain->tpl_display);
+
 	vk_free(&chain->allocator, chain);
 }
 
diff --git a/src/wsi/wsi.h b/src/wsi/wsi.h
index 4e52c39..9539a57 100644
--- a/src/wsi/wsi.h
+++ b/src/wsi/wsi.h
@@ -89,8 +89,10 @@ static inline tpl_display_t *
 vk_get_tpl_display(tpl_handle_t native_dpy)
 {
 	tpl_display_t *display = tpl_display_create(TPL_BACKEND_WAYLAND_VULKAN_WSI, native_dpy);
-	if (display == NULL)
+	if (display == NULL) {
 		display = tpl_display_get(native_dpy);
+		tpl_object_reference((tpl_object_t *)display);
+	}
 	return display;
 };