[Mesa-stable] [PATCH] radv: fix crash in vkCmdClearAttachments with unused attachment

[Samuel Pitoiset]

depth_stencil_attachment and/or ds_resolve attachment can be NULL.

This fixes crashes with
dEQP-VK.renderpass.suballocation.unused_clear_attachments.*

Cc: 19.1 <mesa-stable at lists.freedesktop.org>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
 src/amd/vulkan/radv_meta_clear.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/amd/vulkan/radv_meta_clear.c b/src/amd/vulkan/radv_meta_clear.c
index dd2ba402f40..b93ba3e0b29 100644
--- a/src/amd/vulkan/radv_meta_clear.c
+++ b/src/amd/vulkan/radv_meta_clear.c
@@ -1688,7 +1688,7 @@ emit_clear(struct radv_cmd_buffer *cmd_buffer,
 		if (ds_resolve_clear)
 			ds_att = subpass->ds_resolve_attachment;
 
-		if (ds_att->attachment == VK_ATTACHMENT_UNUSED)
+		if (!ds_att || ds_att->attachment == VK_ATTACHMENT_UNUSED)
 			return;
 
 		VkImageLayout image_layout = ds_att->layout;
-- 
2.22.0