[hpoussin] 19155: Fix adding of the tag when the group order list already exists

Fix adding of the tag when the group order list already exists
Modified: trunk/reactos/lib/setupapi/install.c
  _____

Modified: trunk/reactos/lib/setupapi/install.c
--- trunk/reactos/lib/setupapi/install.c	2005-11-11 22:31:50 UTC
(rev 19154)
+++ trunk/reactos/lib/setupapi/install.c	2005-11-11 22:34:01 UTC
(rev 19155)
@@ -1218,7 +1218,7 @@

SetLastError(rc);
                 goto cleanup;
             }
-            else if (dwRegType != REG_BINARY || bufferSize %
sizeof(DWORD) != 0)
+            else if (dwRegType != REG_BINARY || bufferSize == 0 ||
bufferSize % sizeof(DWORD) != 0)
             {
                 SetLastError(ERROR_GEN_FAILURE);
                 goto cleanup;
@@ -1238,13 +1238,15 @@
                     lpLoadOrderGroup,
                     NULL,
                     NULL,
-                    (flags & SPSVCINST_TAGTOFRONT) ?
(BYTE*)&GroupOrder[1] : (BYTE*)&GroupOrder[0],
+                    (BYTE*)GroupOrder,
                     &bufferSize);
                 if (rc != ERROR_SUCCESS)
                 {
                     SetLastError(rc);
                     goto cleanup;
                 }
+                if (flags & SPSVCINST_TAGTOFRONT)
+                    memmove(&GroupOrder[2], &GroupOrder[1], bufferSize
- sizeof(DWORD));
             }
             else
             {