From fcbe987e1007afa15c8ccb0013322a74b7259ad2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tapani=20P=C3=A4lli?= <tapani.palli@intel.com>
Date: Fri, 16 Jan 2026 09:59:17 +0200
Subject: [PATCH] anv: fix setting emitted_flush_bits
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Fixes a crash with:
   dEQP-VK.api.external.semaphore.opaque_fd.signal_export_import_wait_temporary

when driver calls genX(CmdSetEvent2) -> emit_apply_pipe_flushes with
having NULL in emitted_flush_bits.

Fixes: 8834ef8bcd5 ("anv: use flushing PIPE_CONTROL for event signaling")
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39343>
---
 src/intel/vulkan/genX_cmd_buffer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c
index 30201caf41e..1702047d2a8 100644
--- a/src/intel/vulkan/genX_cmd_buffer.c
+++ b/src/intel/vulkan/genX_cmd_buffer.c
@@ -2128,7 +2128,8 @@ genX(emit_apply_pipe_flushes)(struct anv_batch *batch,
       emit_resource_barrier(batch, device->info,
                             src_stages, dst_stages, bits,
                             signal_addr, wait_addr);
-      *emitted_flush_bits = 0;
+      if (emitted_flush_bits)
+         *emitted_flush_bits = 0;
       return 0;
    }
 #endif