Add Egberts fixes for 64bit architectures

Add additional checks for the *DRIRec info structure passed in from the
device driver. This ensures that things fallback to indirect rendering if
the DDX driver has had modifications (i.e. removal of the drmAddress field).

1 files changed, 4 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/r128/r128_screen.c b/src/mesa/drivers/dri/r128/r128_screen.c
index 52b9b7bcbc..c6c598cc3b 100644
--- a/src/mesa/drivers/dri/r128/r128_screen.c
+++ b/src/mesa/drivers/dri/r128/r128_screen.c
@@ -102,6 +102,10 @@ r128CreateScreen( __DRIscreenPrivate *sPriv )
      (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->getProcAddress("glxEnableExtension"));
    void * const psc = sPriv->psc->screenConfigs;
 
+   if (sPriv->devPrivSize != sizeof(R128DRIRec)) {
+      fprintf(stderr,"\nERROR!  sizeof(R128DRIRec) does not match passed size from device driver\n");
+      return GL_FALSE;
+   }
 
    /* Allocate the private area */
    r128Screen = (r128ScreenPtr) CALLOC( sizeof(*r128Screen) );