r0 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/tty/ldiscs\x00', 0x0, 0x0)
preadv(r0, &(0x7f0000000780)=[{&(0x7f0000000600)=""/130, 0x82}], 0x1, 0x6, 0x0)