Mesa (master): intel: don't crash when dri2 tells us about buffers we don' t care about.

[Eric Anholt]

Module: Mesa
Branch: master
Commit: f82f1ffba9f2e5971a6a3f3927ae3b22b798bab2
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f82f1ffba9f2e5971a6a3f3927ae3b22b798bab2

Author: Eric Anholt <eric at anholt.net>
Date:   Sun Feb  8 15:39:51 2009 +0100

intel: don't crash when dri2 tells us about buffers we don't care about.

---

 src/mesa/drivers/dri/intel/intel_context.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index 0d9487b..7a93801 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -254,6 +254,9 @@ intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable)
 	   return;
        }
 
+       if (rb == NULL)
+	  continue;
+
        if (rb->region) {
 	  dri_bo_flink(rb->region->buffer, &name);
 	  if (name == buffers[i].name)