[Piglit] [PATCH] shader_runner: check for no GLSL program in setup_ubos()

[Brian Paul]

If we're running an ARB_vertex/fragment_program test, there will be
no GLSL shader program and 'prog' will be zero.  Return early to avoid
generating an error from the GL_ACTIVE_UNIFORM_BLOCKS query.
---
 tests/shaders/shader_runner.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tests/shaders/shader_runner.c b/tests/shaders/shader_runner.c
index 1a144a2..d78514b 100644
--- a/tests/shaders/shader_runner.c
+++ b/tests/shaders/shader_runner.c
@@ -1639,6 +1639,11 @@ setup_ubos(void)
 		return;
 	}
 
+	if (prog == 0) {
+		/* probably running an ARB_vertex/fragment_program test */
+		return;
+	}
+
 	glGetProgramiv(prog, GL_ACTIVE_UNIFORM_BLOCKS, &num_uniform_blocks);
 	if (num_uniform_blocks == 0)
 		return;
-- 
1.7.10.4