From: Patrice Mandin <pmandin@caramail.com>
Date: Thu, 6 Sep 2007 20:36:12 +0000 (+0200)
Subject: nouveau: nv10: check NULL pointers
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=249ca55555beea76c63a5f5dd09d35aa45efa180;p=mesa.git

nouveau: nv10: check NULL pointers
---

diff --git a/src/mesa/drivers/dri/nouveau/nv10_state.c b/src/mesa/drivers/dri/nouveau/nv10_state.c
index 94525ba2a80..b63893d05c4 100644
--- a/src/mesa/drivers/dri/nouveau/nv10_state.c
+++ b/src/mesa/drivers/dri/nouveau/nv10_state.c
@@ -253,8 +253,12 @@ static void nv10DepthRange(GLcontext *ctx, GLclampd nearval, GLclampd farval)
 	nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
 
 	GLfloat depth_scale = 16777216.0;
-	if (ctx->DrawBuffer->_DepthBuffer->DepthBits == 16) {
-		depth_scale = 32768.0;
+	if (ctx->DrawBuffer) {
+		if (ctx->DrawBuffer->_DepthBuffer) {
+			if (ctx->DrawBuffer->_DepthBuffer->DepthBits == 16) {
+				depth_scale = 32768.0;
+			}
+		}
 	}
 
 	BEGIN_RING_CACHE(NvSub3D, NV10_TCL_PRIMITIVE_3D_DEPTH_RANGE_NEAR, 2);