From 04699cc3aa1c3037b4b6d15f88e5157d31adda1a Mon Sep 17 00:00:00 2001
From: Thong Thai <thong.thai@amd.com>
Date: Thu, 11 May 2023 15:10:55 -0400
Subject: [PATCH] frontends/va/context: return error if context_id == 0

When destroying a context, check the context_id, preventing the
handle_table_get function from producing the following error:

handle_table_get: Assertion `handle' failed.

Cc: stable

Signed-off-by: Thong Thai <thong.thai@amd.com>
Tested-by: David Heidelberg <david.heidelberg@collabora.com>
Reviewed-by: Boyuan Zhang <Boyuan.Zhang@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22970>
---
 src/gallium/frontends/va/context.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gallium/frontends/va/context.c b/src/gallium/frontends/va/context.c
index c733509..6e6e907 100644
--- a/src/gallium/frontends/va/context.c
+++ b/src/gallium/frontends/va/context.c
@@ -382,6 +382,9 @@ vlVaDestroyContext(VADriverContextP ctx, VAContextID context_id)
    if (!ctx)
       return VA_STATUS_ERROR_INVALID_CONTEXT;
 
+   if (context_id == 0)
+      return VA_STATUS_ERROR_INVALID_CONTEXT;
+
    drv = VL_VA_DRIVER(ctx);
    mtx_lock(&drv->mutex);
    context = handle_table_get(drv->htab, context_id);
-- 
2.7.4