[PATCH 1/2] Sync: Always initialise system counter list

[Daniel Stone]

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 at fooishbar.org>
---
 Xext/sync.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Xext/sync.c b/Xext/sync.c
index 8a333dd..b8f094d 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");
-- 
1.7.10.4