From 235de57cd801199488d2701646cafd6201a1658b Mon Sep 17 00:00:00 2001
From: Alexander Larsson <alexl@redhat.com>
Date: Fri, 18 Sep 2020 11:34:14 +0200
Subject: [PATCH] gl: Properly report error if shader linking fails

In gsk_gl_shader_builder_create_program(), if linking fails we
need to return -1 to indicate error, rather than the old deleted
program id.
---
 gsk/gl/gskglshaderbuilder.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gsk/gl/gskglshaderbuilder.c b/gsk/gl/gskglshaderbuilder.c
index a133527784..66f0a3843e 100644
--- a/gsk/gl/gskglshaderbuilder.c
+++ b/gsk/gl/gskglshaderbuilder.c
@@ -188,6 +188,7 @@ gsk_gl_shader_builder_create_program (GskGLShaderBuilder  *self,
       g_free (buffer);
 
       glDeleteProgram (program_id);
+      program_id = -1;
 
       goto out;
     }