From e06565b103828b276fb10e3c4b2d94b36de05987 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Fri, 4 Jul 2008 09:58:55 -0600
Subject: [PATCH] mesa: generate GL_INVALID_OPERATION in
 _mesa_get_uniform_location() if program isn't linked

---
 src/mesa/shader/shader_api.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c
index 3a067fe3e11..6cfdf57a494 100644
--- a/src/mesa/shader/shader_api.c
+++ b/src/mesa/shader/shader_api.c
@@ -1011,6 +1011,11 @@ _mesa_get_uniform_location(GLcontext *ctx, GLuint program, const GLchar *name)
    if (!shProg)
       return -1;
 
+   if (shProg->LinkStatus == GL_FALSE) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformfv(program)");
+      return -1;
+   }
+
    /* XXX we should return -1 if the uniform was declared, but not
     * actually used.
     */
-- 
2.30.2