From 004c5b60caa3a58177be62e1f4f9eb7388979126 Mon Sep 17 00:00:00 2001
From: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Date: Tue, 27 Sep 2022 21:42:49 -0400
Subject: [PATCH] glthread: handle DeleteBuffers(n=-1) gracefully
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this is a valid error condition

cc: mesa-stable

fixes:
GTF-GL46.gtf21.GL2FixedTests.buffer_objects.buffer_objects

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18856>
---
 src/mesa/main/glthread_bufferobj.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/main/glthread_bufferobj.c b/src/mesa/main/glthread_bufferobj.c
index 615d3b3..df57404 100644
--- a/src/mesa/main/glthread_bufferobj.c
+++ b/src/mesa/main/glthread_bufferobj.c
@@ -210,7 +210,7 @@ _mesa_glthread_DeleteBuffers(struct gl_context *ctx, GLsizei n,
 {
    struct glthread_state *glthread = &ctx->GLThread;
 
-   if (!buffers)
+   if (!buffers || n < 0)
       return;
 
    for (unsigned i = 0; i < n; i++) {
-- 
2.7.4