Hi Viresh, > + TEST(fd = fsopen(tst_device->fs_type, 0)); > + if (fd == -1) > + tst_brk(TBROK | TERRNO, "fsopen() failed"); Just a note all these tst_brk/tst_res after TEST() should use TTERRNO, not TERRNO. Although TERRNO will probably work in this case as well, it'd be better to use TTERRNO (see lib/tst_res.c). Kind regards, Petr