From dea834e639715caa9517a695a3fb04d5de9aa069 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= <marek.olsak@amd.com>
Date: Thu, 10 Sep 2015 18:14:36 +0200
Subject: [PATCH] gallium/radeon: add a fail path for depth MSAA texture
 readback
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Cc: 11.0 <mesa-stable@lists.freedesktop.org>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
---
 src/gallium/drivers/radeon/r600_texture.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gallium/drivers/radeon/r600_texture.c b/src/gallium/drivers/radeon/r600_texture.c
index a0259160f8c..fc69f48bb70 100644
--- a/src/gallium/drivers/radeon/r600_texture.c
+++ b/src/gallium/drivers/radeon/r600_texture.c
@@ -989,6 +989,11 @@ static void *r600_texture_transfer_map(struct pipe_context *ctx,
 
 			if (usage & PIPE_TRANSFER_READ) {
 				struct pipe_resource *temp = ctx->screen->resource_create(ctx->screen, &resource);
+				if (!temp) {
+					R600_ERR("failed to create a temporary depth texture\n");
+					FREE(trans);
+					return NULL;
+				}
 
 				r600_copy_region_with_blit(ctx, temp, 0, 0, 0, 0, texture, level, box);
 				rctx->blit_decompress_depth(ctx, (struct r600_texture*)temp, staging_depth,
-- 
2.30.2