mshtml: Always set the URL policy in the error cases?

[Francois Gouget]

gcc 4.7 is complaining that policy may be used uninitialized in 
InternetHostSecurityManager_QueryCustomPolicy() and indeed there are 
many error cases in confirm_safety_load() and confirm_safety() where the 
policy is not set. The patch belowe seems to plug all these holes but I 
don't know if it really makes sense.

diff --git a/dlls/mshtml/secmgr.c b/dlls/mshtml/secmgr.c
index ff349ac..3f64a42 100644
--- a/dlls/mshtml/secmgr.c
+++ b/dlls/mshtml/secmgr.c
@@ -104,10 +104,9 @@ static HRESULT confirm_safety_load(HTMLDocumentNode *This, struct CONFIRMSAFETY
         CATID init_catid = CATID_SafeForInitializing;

hres = ICatInformation_IsClassOfCategories(This->catmgr, &cs->clsid, 1, &init_catid, 0, NULL);
+        *ret = hres == S_OK ? URLPOLICY_ALLOW : URLPOLICY_DISALLOW;
         if(FAILED(hres))
             return hres;
-
-        *ret = hres == S_OK ? URLPOLICY_ALLOW : URLPOLICY_DISALLOW;
     }

return S_OK;
@@ -157,13 +156,17 @@ static HRESULT confirm_safety(HTMLDocumentNode *This, const WCHAR *url, struct C
         if(!This->catmgr) {
             hres = CoCreateInstance(&CLSID_StdComponentCategoriesMgr, NULL, CLSCTX_INPROC_SERVER,
                     &IID_ICatInformation, (void**)&This->catmgr);
-            if(FAILED(hres))
+            if(FAILED(hres)) {
+                *ret = URLPOLICY_DISALLOW;
                 return hres;
+            }
         }

hres = ICatInformation_IsClassOfCategories(This->catmgr, &cs->clsid, 1, &scripting_catid, 0, NULL);
-        if(FAILED(hres))
+        if(FAILED(hres)) {
+            *ret = URLPOLICY_DISALLOW;
             return hres;
+        }

if(hres != S_OK) {
             *ret = URLPOLICY_DISALLOW;