From 1de656bce3ddd4faac00a1976a720fa2dcb351e7 Mon Sep 17 00:00:00 2001
From: Karol Herbst <kherbst@redhat.com>
Date: Wed, 15 Jun 2022 01:44:42 +0200
Subject: [PATCH] nouveau/ws: assert on broken channel

no point in continuing

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24326>
---
 src/nouveau/winsys/nouveau_push.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/nouveau/winsys/nouveau_push.c b/src/nouveau/winsys/nouveau_push.c
index 547f908..851eadf 100644
--- a/src/nouveau/winsys/nouveau_push.c
+++ b/src/nouveau/winsys/nouveau_push.c
@@ -1,5 +1,6 @@
 #include "nouveau_push.h"
 
+#include <errno.h>
 #include <nouveau_drm.h>
 #include <nouveau/nouveau.h>
 #include <sys/mman.h>
@@ -150,7 +151,12 @@ nouveau_ws_push_submit(
    req.nr_push = 1;
    req.push = (uintptr_t)&req_push;
 
-   return drmCommandWriteRead(pdev->fd, DRM_NOUVEAU_GEM_PUSHBUF, &req, sizeof(req));
+   int ret = drmCommandWriteRead(pdev->fd, DRM_NOUVEAU_GEM_PUSHBUF, &req, sizeof(req));
+
+   /* TODO: later we want to report that the channel is gone, but for now just assert */
+   assert(ret != -ENODEV);
+
+   return ret;
 }
 
 void
-- 
2.7.4