[PATCH] quartz: Don't create the advise thread during the clock teardown

[Michael Stefaniuc]

Signed-off-by: Michael Stefaniuc 
---
Fixes bug #44255. All the glory goes to Focht as there was zero brainZ
involved on my side.

dlls/quartz/systemclock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/quartz/systemclock.c b/dlls/quartz/systemclock.c
index a3e1504768..1638e1117e 100644
--- a/dlls/quartz/systemclock.c
+++ b/dlls/quartz/systemclock.c
@@ -229,7 +229,7 @@ static ULONG WINAPI SystemClockImpl_Release(IReferenceClock* iface) {
   ULONG ref = InterlockedDecrement(&This->ref);
   TRACE("(%p): ReleaseRef to %d\n", This, ref);
   if (ref == 0) {
-    if (SystemClockPostMessageToAdviseThread(This, ADVISE_EXIT)) {
+    if (This->adviseThreadActive && SystemClockPostMessageToAdviseThread(This, ADVISE_EXIT)) {
       WaitForSingleObject(This->adviseThread, INFINITE);
       CloseHandle(This->adviseThread);
     }