From 70b18e56d5c3ed69c561c36e098e8aea71ebffc2 Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Date: Tue, 21 Apr 2020 13:29:06 +0200
Subject: [PATCH] vtest: Handle errors coming out of virgl_renderer_submit_cmd

Previously, Mesa would remain forever blocked in read() after an error
such as failing to compile a shader.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
---
 vtest/vtest_renderer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/vtest/vtest_renderer.c b/vtest/vtest_renderer.c
index b7ee18a..bc89f10 100644
--- a/vtest/vtest_renderer.c
+++ b/vtest/vtest_renderer.c
@@ -681,10 +681,10 @@ int vtest_submit_cmd(uint32_t length_dw)
       return -1;
    }
 
-   virgl_renderer_submit_cmd(cbuf, ctx->ctx_id, length_dw);
+   ret = virgl_renderer_submit_cmd(cbuf, ctx->ctx_id, length_dw);
 
    free(cbuf);
-   return 0;
+   return ret ? -1 : 0;
 }
 
 #define DECODE_TRANSFER \