|ATA_WAIT_READY(9)||libata Core Internals||ATA_WAIT_READY(9)|
ata_wait_ready - wait for link to become ready
int ata_wait_ready(struct ata_link * link, unsigned long deadline, int (*check_ready) (struct ata_link *link));
Wait for link to become ready. check_ready should return positive number if link is ready, 0 if it isn't, -ENODEV if link doesn't seem to be occupied, other errno for other error conditions.
Transient -ENODEV conditions are allowed for ATA_TMOUT_FF_WAIT.
LOCKING: EH context.
0 if link is ready before deadline; otherwise, -errno.
|January 2017||Kernel Hackers Manual 4.8.|