From b9d7097111bd68ac8e310cd097b361a4338f060c Mon Sep 17 00:00:00 2001
From: Alexander von Gluck IV <kallisti5@unixzen.com>
Date: Wed, 19 Dec 2012 20:02:23 -0600
Subject: [PATCH] swpipe: Don't dereference pointer

---
 src/add-ons/opengl/swpipe/GalliumContext.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/add-ons/opengl/swpipe/GalliumContext.cpp b/src/add-ons/opengl/swpipe/GalliumContext.cpp
index f06c7b96b7..de7d458333 100644
--- a/src/add-ons/opengl/swpipe/GalliumContext.cpp
+++ b/src/add-ons/opengl/swpipe/GalliumContext.cpp
@@ -52,6 +52,11 @@ hgl_viewport(struct gl_context* glContext, GLint x, GLint y,
 		glContext, x, y, width, height);
 	struct hgl_context *context = (struct hgl_context*)glContext->DriverCtx;
 
+	if (!context) {
+		ERROR("%s: No context yet. bailing.\n", __func__);
+		return;
+	}
+
 	int32 bitmapWidth;
 	int32 bitmapHeight;