libata: fix infinite EH waiting bug

When EH gives up after repeated exceptions, it doesn't't clear the
PENDING bit on exit which leaves PENDING bit set without EH actually
scheduled.  This makes ata_port_wait_eh() to wait forever makes rmmod
hang on such port.  Fix it by clearing the flag.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2007-06-25 21:47:11 +09:00 committed by Jeff Garzik
parent 09d7f9b065
commit 914616a3c2
1 changed files with 1 additions and 0 deletions

View File

@ -336,6 +336,7 @@ void ata_scsi_error(struct Scsi_Host *host)
}
ata_port_printk(ap, KERN_ERR, "EH pending after %d "
"tries, giving up\n", ATA_EH_MAX_REPEAT);
ap->pflags &= ~ATA_PFLAG_EH_PENDING;
}
/* this run is complete, make sure EH info is clear */