[PATCH v2] ole32: Return IUnknown from GITCF_CreateInstance if requested

[Alex Henrie]

Signed-off-by: Alex Henrie <alexhenrie24 at gmail.com>
---
Without this patch, ArcMap.exe (part of ArcGIS Desktop 10.6) crashes
shortly after starting.

v2: Move the error message to the QueryInterface function and clean up
that function a bit.
---
 dlls/ole32/git.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/dlls/ole32/git.c b/dlls/ole32/git.c
index f7a0460154..e2ed8be91d 100644
--- a/dlls/ole32/git.c
+++ b/dlls/ole32/git.c
@@ -117,18 +117,18 @@ StdGlobalInterfaceTable_QueryInterface(IGlobalInterfaceTable* iface,
   /* Make sure silly coders can't crash us */
   if (ppvObject == 0) return E_INVALIDARG;
 
-  *ppvObject = 0; /* assume we don't have the interface */
-
   /* Do we implement that interface? */
   if (IsEqualIID(&IID_IUnknown, riid) ||
       IsEqualIID(&IID_IGlobalInterfaceTable, riid))
+  {
+    IGlobalInterfaceTable_AddRef(iface);
     *ppvObject = iface;
-  else
-    return E_NOINTERFACE;
+    return S_OK;
+  }
 
-  /* Now inc the refcount */
-  IGlobalInterfaceTable_AddRef(iface);
-  return S_OK;
+  *ppvObject = NULL;
+  ERR("(%s), not supported.\n", debugstr_guid(riid));
+  return E_NOINTERFACE;
 }
 
 static ULONG WINAPI
@@ -314,13 +314,7 @@ static HRESULT WINAPI
 GITCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pUnk,
                      REFIID riid, LPVOID *ppv)
 {
-  if (IsEqualIID(riid,&IID_IGlobalInterfaceTable)) {
-    IGlobalInterfaceTable *git = get_std_git();
-    return IGlobalInterfaceTable_QueryInterface(git, riid, ppv);
-  }
-
-  FIXME("(%s), not supported.\n",debugstr_guid(riid));
-  return E_NOINTERFACE;
+  return IGlobalInterfaceTable_QueryInterface(get_std_git(), riid, ppv);
 }
 
 static HRESULT WINAPI GITCF_LockServer(LPCLASSFACTORY iface, BOOL fLock)
-- 
2.18.0