From 4cf03811ea5a9196d27d80dbfe148595e7f35d40 Mon Sep 17 00:00:00 2001
From: twinaphex <libretro@gmail.com>
Date: Sat, 4 Oct 2014 22:24:14 +0200
Subject: [PATCH] (GLSL) Make gl_glsl_num more robust

---
 gfx/shader/shader_glsl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gfx/shader/shader_glsl.c b/gfx/shader/shader_glsl.c
index 80a2ec4e6b..b5dc6499ab 100644
--- a/gfx/shader/shader_glsl.c
+++ b/gfx/shader/shader_glsl.c
@@ -1185,7 +1185,9 @@ static void gl_glsl_use(void *data, unsigned index)
 
 static unsigned gl_glsl_num(void)
 {
-   return glsl_shader->passes;
+   if (glsl_shader)
+      return glsl_shader->passes;
+   return 0;
 }
 
 static bool gl_glsl_filter_type(unsigned index, bool *smooth)