From: Alan Hourihane <alanh@tungstengraphics.com>
Date: Sun, 14 Aug 2005 12:16:51 +0000 (+0000)
Subject: Add a check which compares the passed in size of the DDX driver private DRI
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=69dc32cfac945bf664ddfbd6f0116404f893e66e;p=mesa.git

Add a check which compares the passed in size of the DDX driver private DRI
structure to the 3D drivers view of it, and abort if they don't match.

This traps the case with the drmAddress removal in the DDX driver.
---

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));