[Mesa-dev] [PATCH] nvc0: handle possible null dereference in nvc0_validate_vertex_buffers

[Rhys Perry]

It's valid to have a vertex buffer with a NULL resource.

Signed-off-by: Rhys Perry <pendingchaos02 at gmail.com>
---
 src/gallium/drivers/nouveau/nvc0/nvc0_vbo.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_vbo.c b/src/gallium/drivers/nouveau/nvc0/nvc0_vbo.c
index 66de6d9e2f..7871d50ab9 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_vbo.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_vbo.c
@@ -346,6 +346,10 @@ nvc0_validate_vertex_buffers(struct nvc0_context *nvc0)
          /* address/value set in nvc0_update_user_vbufs */
          continue;
       }
+      if (!vb->buffer.resource) {
+         IMMED_NVC0(push, NVC0_3D(VERTEX_ARRAY_FETCH(i)), 0);
+         continue;
+      }
       res = nv04_resource(vb->buffer.resource);
       offset = ve->pipe.src_offset + vb->buffer_offset;
       limit = vb->buffer.resource->width0 - 1;
-- 
2.17.1