From 24a8b470ba592b4eb3560f7c5762e17ec0977a51 Mon Sep 17 00:00:00 2001
From: Vinson Lee <vlee@vmware.com>
Date: Sat, 27 Feb 2010 00:31:14 -0800
Subject: glsl: Assert input to strcmp is not null.

---
 src/mesa/shader/slang/slang_builtin.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/mesa/shader/slang/slang_builtin.c b/src/mesa/shader/slang/slang_builtin.c
index 0a9f0b97fb..5533cc5b65 100644
--- a/src/mesa/shader/slang/slang_builtin.c
+++ b/src/mesa/shader/slang/slang_builtin.c
@@ -121,6 +121,7 @@ lookup_statevar(const char *var, GLint index1, GLint index2, const char *field,
    }
    else if (strcmp(var, "gl_DepthRange") == 0) {
       tokens[0] = STATE_DEPTH_RANGE;
+      assert(field);
       if (strcmp(field, "near") == 0) {
          *swizzleOut = SWIZZLE_XXXX;
       }
-- 
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