avifil32: Add a missing AddRef in IGetFrame_QueryInterface().

[Francois Gouget]

---
 dlls/avifil32/getframe.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/dlls/avifil32/getframe.c b/dlls/avifil32/getframe.c
index 428901e..db05f85 100644
--- a/dlls/avifil32/getframe.c
+++ b/dlls/avifil32/getframe.c
@@ -140,6 +140,7 @@ static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
   if (IsEqualGUID(&IID_IUnknown, refiid) ||
       IsEqualGUID(&IID_IGetFrame, refiid)) {
     *obj = iface;
+    IGetFrame_AddRef(iface);
     return S_OK;
   }
 
-- 
1.6.1.3