From ae268884da08d430855a9b4ef7873127047dcfe3 Mon Sep 17 00:00:00 2001
From: Sarah Walker <sarah.walker@imgtec.com>
Date: Wed, 2 Nov 2022 14:24:55 +0000
Subject: [PATCH] pvr: Fix NULL pointer indirection in pvr_enable_z_replicate()

Check input_subpass->depth_stencil_attachment is non-NULL before indirecting
it.

Signed-off-by: Sarah Walker <sarah.walker@imgtec.com>
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19475>
---
 src/imagination/vulkan/pvr_hw_pass.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/imagination/vulkan/pvr_hw_pass.c b/src/imagination/vulkan/pvr_hw_pass.c
index 347c22a0d6d..7a0d5cb9541 100644
--- a/src/imagination/vulkan/pvr_hw_pass.c
+++ b/src/imagination/vulkan/pvr_hw_pass.c
@@ -1488,7 +1488,8 @@ pvr_enable_z_replicate(struct pvr_renderpass_context *ctx,
       struct pvr_render_subpass *input_subpass = subpass->input_subpass;
 
       /* If the subpass writes to the attachment then enable z replication. */
-      if (*input_subpass->depth_stencil_attachment == replicate_attach_idx &&
+      if (input_subpass->depth_stencil_attachment &&
+          *input_subpass->depth_stencil_attachment == replicate_attach_idx &&
           !subpass->z_replicate) {
          subpass->z_replicate = true;