1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915/intel_screen.c b/src/mesa/drivers/dri/i915/intel_screen.c
index 6c3f2f57744..61166fe2a6c 100644
--- a/src/mesa/drivers/dri/i915/intel_screen.c
+++ b/src/mesa/drivers/dri/i915/intel_screen.c
@@ -79,6 +79,10 @@ static GLboolean intelInitDriver(__DRIscreenPrivate *sPriv)
      (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->getProcAddress("glxEnableExtension"));
    void * const psc = sPriv->psc->screenConfigs;
 
+   if (sPriv->devPrivSize != sizeof(I830DRIRec)) {
+      fprintf(stderr,"\nERROR!  sizeof(I830DRIRec) does not match passed size from 2D driver\n");
+      return GL_FALSE;
+   }
 
    /* Allocate the private area */
    intelScreen = (intelScreenPrivate *)CALLOC(sizeof(intelScreenPrivate));