[gtk/wip/chergert/glproto: 707/920] allow -1 for a failure program

[Christian Hergert <chergert src gnome org>]

commit 26ae9234177231a7f711f5cc5efef5248723b405
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jan 13 23:15:34 2021 -0800

    allow -1 for a failure program

 gsk/next/gskglprogram.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gsk/next/gskglprogram.c b/gsk/next/gskglprogram.c
index f61a870a74..87b22241cf 100644
--- a/gsk/next/gskglprogram.c
+++ b/gsk/next/gskglprogram.c
@@ -34,7 +34,7 @@ gsk_gl_program_new (GskGLCommandQueue *command_queue,
 {
   GskGLProgram *self;
 
-  g_return_val_if_fail (program_id >= 0, NULL);
+  g_return_val_if_fail (program_id >= -1, NULL);
 
   self = g_object_new (GSK_TYPE_GL_PROGRAM, NULL);
   self->id = program_id;