r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCVHANGUP(r0, 0x5437, 0x0)
readv(r0, &(0x7f00000002c0)=[{&(0x7f0000000140)=""/167, 0xa7}], 0x1)