From 6369dbd6be1d148ec7aa2b72885f247b5120511a Mon Sep 17 00:00:00 2001
From: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Date: Wed, 17 Sep 2025 09:59:16 -0400
Subject: [PATCH] zink: account for kopper dt not having a swapchain when
 pruning batch usage

this could be pending deletion

cc: mesa-stable

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37379>
---
 src/gallium/drivers/zink/zink_kopper.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gallium/drivers/zink/zink_kopper.c b/src/gallium/drivers/zink/zink_kopper.c
index 477ae49a3d3..b8c9330cd6f 100644
--- a/src/gallium/drivers/zink/zink_kopper.c
+++ b/src/gallium/drivers/zink/zink_kopper.c
@@ -1240,6 +1240,10 @@ void
 zink_kopper_prune_batch_usage(struct kopper_displaytarget *cdt, const struct zink_batch_usage *u)
 {
    struct kopper_swapchain *cswap = cdt->swapchain;
+
+   if (!cswap)
+      return;
+
    swapchain_prune_batch_usage(cswap, u);
    for (cswap = cdt->old_swapchain; cswap; cswap = cswap->next)
       swapchain_prune_batch_usage(cswap, u);