s4-schema: avoid segfaulting if id3.guid is NULL

diff --git a/source4/dsdb/schema/schema_syntax.c b/source4/dsdb/schema/schema_syntax.c
index f542f670f1b1513829e5b6abdf4d379a6b37cd23..a93cdfaaa913591b77d2e4d832ddfbfefae8ef58 100644 (file)
--- a/source4/dsdb/schema/schema_syntax.c
+++ b/source4/dsdb/schema/schema_syntax.c
@@ -1995,10 +1995,9 @@ static WERROR dsdb_syntax_DN_BINARY_drsuapi_to_ldb(const struct dsdb_syntax_ctx
                                talloc_free(tmp_ctx);
                                return WERR_FOOBAR;
                        }
+                       talloc_free(guid_blob.data);
                }
 
-               talloc_free(guid_blob.data);
-
                if (id3.__ndr_size_sid) {
                        DATA_BLOB sid_blob;
                        ndr_err = ndr_push_struct_blob(&sid_blob, tmp_ctx, &id3.sid,