Mesa (master): vbo: add a null pointer check to handle OOM instead of crashing

[Brian Paul]

Module: Mesa
Branch: master
Commit: 7a89f08a22eb83ed2f0c51e516397d6415e64a3d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7a89f08a22eb83ed2f0c51e516397d6415e64a3d

Author: Brian Paul <brianp at vmware.com>
Date:   Thu Jan 24 16:32:42 2013 -0700

vbo: add a null pointer check to handle OOM instead of crashing

Note: This is a candidate for the 9.0 branch.

---

 src/mesa/vbo/vbo_exec_api.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/src/mesa/vbo/vbo_exec_api.c b/src/mesa/vbo/vbo_exec_api.c
index 985f220..353f8cf 100644
--- a/src/mesa/vbo/vbo_exec_api.c
+++ b/src/mesa/vbo/vbo_exec_api.c
@@ -124,6 +124,11 @@ void vbo_exec_vtx_wrap( struct vbo_exec_context *exec )
     */
    vbo_exec_wrap_buffers( exec );
    
+   if (!exec->vtx.buffer_ptr) {
+      /* probably ran out of memory earlier when allocating the VBO */
+      return;
+   }
+
    /* Copy stored stored vertices to start of new list. 
     */
    assert(exec->vtx.max_vert - exec->vtx.vert_count > exec->vtx.copied.nr);