From: Brian Paul <brianp@vmware.com>
Date: Mon, 29 Jun 2009 21:26:26 +0000 (-0600)
Subject: intel: added null ptr check
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4e43126a5915b1233c89c61400c8270d23d48ea3;p=mesa.git

intel: added null ptr check

This fixes a segfault seen with piglit's fdo20701 test.
---

diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index 1222a9a8c6f..90e66fa5c07 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -537,7 +537,7 @@ intelFinish(GLcontext * ctx)
 
        irb = intel_renderbuffer(fb->_ColorDrawBuffers[i]);
 
-       if (irb->region)
+       if (irb && irb->region)
 	  dri_bo_wait_rendering(irb->region->buffer);
    }
    if (fb->_DepthBuffer) {