From: Jakob Bornecrantz <jakob@vmware.com>
Date: Wed, 30 Dec 2009 03:22:12 +0000 (+0100)
Subject: st/xorg: Make sure we don't overrun the fence array in block handler
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=53e314cb8057797ae75187d91836a50f61170dd7;p=mesa.git

st/xorg: Make sure we don't overrun the fence array in block handler
---

diff --git a/src/gallium/state_trackers/xorg/xorg_driver.c b/src/gallium/state_trackers/xorg/xorg_driver.c
index bf0a23fe9c2..ee01ba0dcf6 100644
--- a/src/gallium/state_trackers/xorg/xorg_driver.c
+++ b/src/gallium/state_trackers/xorg/xorg_driver.c
@@ -467,7 +467,7 @@ static void drv_block_handler(int i, pointer blockData, pointer pTimeout,
         * quite small.  Let us get a fair way ahead of hardware before
         * throttling.
         */
-       for (j = 0; j < XORG_NR_FENCES; j++)
+       for (j = 0; j < XORG_NR_FENCES - 1; j++)
           ms->screen->fence_reference(ms->screen,
                                       &ms->fence[j],
                                       ms->fence[j+1]);