Fix the IMalloc::ReAlloc() to follow the documented behavior.

dlls/ole32/ifs.c

@@ -209,7 +209,12 @@ static LPVOID WINAPI IMalloc_fnRealloc(LPMALLOC iface,LPVOID pv,DWORD cb) {
 	    pv = pRealMemory;
 	}
 
-	pNewMemory = HeapReAlloc(GetProcessHeap(),0,pv,cb);
+        if (!pv) pNewMemory = HeapAlloc(GetProcessHeap(),0,cb);
+	else if (cb) pNewMemory = HeapReAlloc(GetProcessHeap(),0,pv,cb);
+	else {
+	    HeapFree(GetProcessHeap(),0,pv);
+	    pNewMemory = NULL;
+	}
 
 	if(Malloc32.pSpy) {
 	    pNewMemory = IMallocSpy_PostRealloc(Malloc32.pSpy, pNewMemory, TRUE);

dlls/ole32/ole16.c

@@ -113,28 +113,35 @@ SEGPTR WINAPI IMalloc16_fnAlloc(IMalloc16* iface,DWORD cb) {
 }
 
 /******************************************************************************
- * IMalloc16_Realloc [COMPOBJ.504]
+ * IMalloc16_Free [COMPOBJ.505]
  */
-SEGPTR WINAPI IMalloc16_fnRealloc(IMalloc16* iface,SEGPTR pv,DWORD cb)
+VOID WINAPI IMalloc16_fnFree(IMalloc16* iface,SEGPTR pv)
 {
-    SEGPTR ret;
+    void *ptr = MapSL(pv);
     ICOM_THIS(IMalloc16Impl,iface);
-    TRACE("(%p)->Realloc(%08lx,%ld)\n",This,pv,cb);
-    ret = MapLS( HeapReAlloc( GetProcessHeap(), 0, MapSL(pv), cb ) );
+    TRACE("(%p)->Free(%08lx)\n",This,pv);
     UnMapLS(pv);
-    return ret;
+    HeapFree( GetProcessHeap(), 0, ptr );
 }
 
 /******************************************************************************
- * IMalloc16_Free [COMPOBJ.505]
+ * IMalloc16_Realloc [COMPOBJ.504]
  */
-VOID WINAPI IMalloc16_fnFree(IMalloc16* iface,SEGPTR pv)
+SEGPTR WINAPI IMalloc16_fnRealloc(IMalloc16* iface,SEGPTR pv,DWORD cb)
 {
-    void *ptr = MapSL(pv);
+    SEGPTR ret;
     ICOM_THIS(IMalloc16Impl,iface);
-    TRACE("(%p)->Free(%08lx)\n",This,pv);
+    TRACE("(%p)->Realloc(%08lx,%ld)\n",This,pv,cb);
+    if (!pv) 
+	ret = IMalloc16_fnAlloc(iface, cb);
+    else if (cb) {
+        ret = MapLS( HeapReAlloc( GetProcessHeap(), 0, MapSL(pv), cb ) );
         UnMapLS(pv);
-    HeapFree( GetProcessHeap(), 0, ptr );
+    } else {
+	IMalloc16_fnFree(iface, pv);
+	ret = 0;
+    }
+    return ret;
 }
 
 /******************************************************************************