r0 = openat$sndseq(0xffffffffffffff9c, &(0x7f0000000040), 0x0)
ioctl$SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT(r0, 0xc0a85352, &(0x7f0000001400)={{0x0, 0x6}, 'port0\x00'})