hhctrl.ocx: Plug memory leak.

[Tijl Coosemans]

---
 dlls/hhctrl.ocx/hhctrl.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
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diff --git a/dlls/hhctrl.ocx/hhctrl.c b/dlls/hhctrl.ocx/hhctrl.c
index 9f19004..a555a42 100644
--- a/dlls/hhctrl.ocx/hhctrl.c
+++ b/dlls/hhctrl.ocx/hhctrl.c
@@ -147,7 +147,10 @@ HWND WINAPI HtmlHelpW(HWND caller, LPCWSTR filename, UINT command, DWORD_PTR dat
 
         url = FindContextAlias(info->pCHMInfo, data);
         if(!url)
+        {
+            ReleaseHelpViewer(info);
             return NULL;
+        }
 
         NavigateToUrl(info, url);
         heap_free(url);