Mesa (master): svga: Handle null buffers in svga_buffer_is_user_buffer().

[Thomas Hellstrom]

Module: Mesa
Branch: master
Commit: bd00fb2c060d3d90be670a2f0bbd6f9c9fd2b4ae
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=bd00fb2c060d3d90be670a2f0bbd6f9c9fd2b4ae

Author: José Fonseca <jfonseca at vmware.com>
Date:   Tue May 31 13:33:34 2011 +0100

svga: Handle null buffers in svga_buffer_is_user_buffer().

---

 src/gallium/drivers/svga/svga_resource_buffer.h |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/src/gallium/drivers/svga/svga_resource_buffer.h b/src/gallium/drivers/svga/svga_resource_buffer.h
index 2ae44d2..69d6f72 100644
--- a/src/gallium/drivers/svga/svga_resource_buffer.h
+++ b/src/gallium/drivers/svga/svga_resource_buffer.h
@@ -200,7 +200,11 @@ svga_buffer(struct pipe_resource *buffer)
 static INLINE boolean 
 svga_buffer_is_user_buffer( struct pipe_resource *buffer )
 {
-   return svga_buffer(buffer)->user;
+   if (buffer) {
+      return svga_buffer(buffer)->user;
+   } else {
+      return FALSE;
+   }
 }