[PATCH 1/6] mf/samplegrabber: Always release cancellation key when timer is invoked.

[Derek Lesho]

The sample grabber currently leaks the key on the last invokation of the timer, as it is only released when stream_schedule_sample is called.

Signed-off-by: Derek Lesho 
---
 dlls/mf/samplegrabber.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/dlls/mf/samplegrabber.c b/dlls/mf/samplegrabber.c
index e0287e1e1db..dd48973b7b6 100644
--- a/dlls/mf/samplegrabber.c
+++ b/dlls/mf/samplegrabber.c
@@ -729,6 +729,12 @@ static HRESULT WINAPI sample_grabber_stream_timer_callback_Invoke(IMFAsyncCallba

EnterCriticalSection(&grabber->cs);

+    if (grabber->cancel_key)
+    {
+        IUnknown_Release(grabber->cancel_key);
+        grabber->cancel_key = NULL;
+    }
+
     LIST_FOR_EACH_ENTRY_SAFE(item, item2, &grabber->items, struct scheduled_item, entry)
     {
         if (item->type == ITEM_TYPE_MARKER)