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[PATCH] libata: determine the err_mask when the error is found

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- move "qc->err_mask |= AC_ERR_ATA_BUS" to where the error is found
  - add "assert(qc->err_mask)" to ata_pio_error() to make sure qc->err_mask was available when we enter the error state

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>

============
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Albert Lee 2005-12-05 15:40:15 +08:00 committed by Jeff Garzik
parent a22e2eb071
commit 1c8489840e
1 changed files with 9 additions and 1 deletions
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10
drivers/scsi/libata-core.c
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@ -2830,6 +2830,7 @@ static unsigned long ata_pio_poll(struct ata_port *ap)
status = ata_chk_status(ap);
if (status & ATA_BUSY) {
if (time_after(jiffies, ap->pio_task_timeout)) {
qc->err_mask |= AC_ERR_ATA_BUS;
ap->hsm_task_state = HSM_ST_TMOUT;
return 0;
}
@ -2880,6 +2881,7 @@ static int ata_pio_complete (struct ata_port *ap)
drv_stat = ata_wait_idle(ap);
if (!ata_ok(drv_stat)) {
qc->err_mask |= __ac_err_mask(drv_stat);
ap->hsm_task_state = HSM_ST_ERR;
return 0;
}
@ -3195,6 +3197,7 @@ static void atapi_pio_bytes(struct ata_queued_cmd *qc)
err_out:
printk(KERN_INFO "ata%u: dev %u: ATAPI check failed\n",
ap->id, dev->devno);
qc->err_mask |= AC_ERR_ATA_BUS;
ap->hsm_task_state = HSM_ST_ERR;
}
@ -3244,6 +3247,7 @@ static void ata_pio_block(struct ata_port *ap)
} else {
/* handle BSY=0, DRQ=0 as error */
if ((status & ATA_DRQ) == 0) {
qc->err_mask |= AC_ERR_ATA_BUS;
ap->hsm_task_state = HSM_ST_ERR;
return;
}
@ -3261,9 +3265,13 @@ static void ata_pio_error(struct ata_port *ap)
qc = ata_qc_from_tag(ap, ap->active_tag);
assert(qc != NULL);
/* make sure qc->err_mask is available to
* know what's wrong and recover
*/
assert(qc->err_mask);
ap->hsm_task_state = HSM_ST_IDLE;
qc->err_mask |= AC_ERR_ATA_BUS;
ata_poll_qc_complete(qc);
}