From f937c3d50157a9a42d2f2f10590b6b139ce18a29 Mon Sep 17 00:00:00 2001
From: Daniel Stone <daniel@fooishbar.org>
Date: Tue, 10 Jul 2012 09:10:21 +0100
Subject: [PATCH] Sync: Always initialise system counter list

Sync is designed to let you add system counters before the extension has
been initialised, which means the system counter list may well be full
of bees.  Make sure it's initialised before we add to it, to avoid the
risk of fatal injury.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
---
 Xext/sync.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Xext/sync.c b/Xext/sync.c
index 8a333dd3a..b8f094db5 100644
--- a/Xext/sync.c
+++ b/Xext/sync.c
@@ -951,6 +951,7 @@ SyncCreateSystemCounter(const char *name,
         if (RTCounter == 0) {
             return NULL;
         }
+        xorg_list_init(&SysCounterList);
     }
 
     pCounter = SyncCreateCounter(NULL, FakeClientID(0), initial);
@@ -2448,13 +2449,12 @@ SyncExtensionInit(void)
     ExtensionEntry *extEntry;
     int s;
 
-    xorg_list_init(&SysCounterList);
-
     for (s = 0; s < screenInfo.numScreens; s++)
         miSyncSetup(screenInfo.screens[s]);
 
     if (RTCounter == 0) {
         RTCounter = CreateNewResourceType(FreeCounter, "SyncCounter");
+        xorg_list_init(&SysCounterList);
     }
     RTAlarm = CreateNewResourceType(FreeAlarm, "SyncAlarm");
     RTAwait = CreateNewResourceType(FreeAwait, "SyncAwait");