From: xuelian.bai <xuelian.bai@samsung.com>
Date: Wed, 13 Sep 2017 10:01:14 +0000 (+0800)
Subject: Handle the case when the input swapchain is NULL
X-Git-Tag: accepted/tizen/unified/20171228.065020~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=49ec75d25736cc5dc1879adbb9855cf4e753a3eb;p=platform%2Fcore%2Fuifw%2Fvulkan-wsi-tizen.git

Handle the case when the input swapchain is NULL

Change-Id: If213af9a7bddeffa9a0608b2d709a91580bfdef3
Signed-off-by: Xuelian Bai <xuelian.bai@samsung.com>
Reviewed-by: Hoyub Lee <hoyub.lee@samsung.com>
---

diff --git a/src/wsi/swapchain.c b/src/wsi/swapchain.c
index 0f839dc..195c16a 100644
--- a/src/wsi/swapchain.c
+++ b/src/wsi/swapchain.c
@@ -203,19 +203,21 @@ vk_DestroySwapchainKHR(VkDevice						 device,
 	vk_icd_t				*icd = vk_get_icd();
 	PFN_vkGetDeviceProcAddr	 icd_gdpa = (PFN_vkGetDeviceProcAddr)icd->get_proc_addr(NULL, "vkGetDeviceProcAddr");
 
-	if (icd_gdpa != VK_NULL_HANDLE) {
-		PFN_vkDestroyImage		 destroy_image = (PFN_vkDestroyImage)icd_gdpa(device, "vkDestroyImage");
-		if (destroy_image != VK_NULL_HANDLE) {
-			uint32_t		 i;
-
-			for (i = 0; i < chain->buffer_count; i++)
-				destroy_image(device, chain->buffers[i].image, &chain->allocator);
+	if (chain != VK_NULL_HANDLE) {
+		if (icd_gdpa != VK_NULL_HANDLE) {
+			PFN_vkDestroyImage		 destroy_image = (PFN_vkDestroyImage)icd_gdpa(device, "vkDestroyImage");
+			if (destroy_image != VK_NULL_HANDLE) {
+				uint32_t		 i;
+
+				for (i = 0; i < chain->buffer_count; i++)
+					destroy_image(device, chain->buffers[i].image, &chain->allocator);
+			}
 		}
-	}
 
-	chain->deinit(device, chain);
-	vk_free(&chain->allocator, chain->buffers);
-	vk_free(&chain->allocator, chain);
+		chain->deinit(device, chain);
+		vk_free(&chain->allocator, chain->buffers);
+		vk_free(&chain->allocator, chain);
+	}
 }
 
 VKAPI_ATTR VkResult VKAPI_CALL