diff options
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/libata-core.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index bb604dfbdef..665ae79e1fd 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -1046,6 +1046,30 @@ static unsigned int ata_pio_modes(const struct ata_device *adev) return modes; } +static int ata_qc_wait_err(struct ata_queued_cmd *qc, + struct completion *wait) +{ + int rc = 0; + + if (wait_for_completion_timeout(wait, 30 * HZ) < 1) { + /* timeout handling */ + unsigned int err_mask = ac_err_mask(ata_chk_status(qc->ap)); + + if (!err_mask) { + printk(KERN_WARNING "ata%u: slow completion (cmd %x)\n", + qc->ap->id, qc->tf.command); + } else { + printk(KERN_WARNING "ata%u: qc timeout (cmd %x)\n", + qc->ap->id, qc->tf.command); + rc = -EIO; + } + + ata_qc_complete(qc, err_mask); + } + + return rc; +} + /** * ata_dev_identify - obtain IDENTIFY x DEVICE page * @ap: port on which device we wish to probe resides @@ -1125,7 +1149,7 @@ retry: if (rc) goto err_out; else - wait_for_completion(&wait); + ata_qc_wait_err(qc, &wait); spin_lock_irqsave(&ap->host_set->lock, flags); ap->ops->tf_read(ap, &qc->tf); @@ -2269,7 +2293,7 @@ static void ata_dev_set_xfermode(struct ata_port *ap, struct ata_device *dev) if (rc) ata_port_disable(ap); else - wait_for_completion(&wait); + ata_qc_wait_err(qc, &wait); DPRINTK("EXIT\n"); } @@ -2317,7 +2341,7 @@ static void ata_dev_reread_id(struct ata_port *ap, struct ata_device *dev) if (rc) goto err_out; - wait_for_completion(&wait); + ata_qc_wait_err(qc, &wait); swap_buf_le16(dev->id, ATA_ID_WORDS); @@ -2373,7 +2397,7 @@ static void ata_dev_init_params(struct ata_port *ap, struct ata_device *dev) if (rc) ata_port_disable(ap); else - wait_for_completion(&wait); + ata_qc_wait_err(qc, &wait); DPRINTK("EXIT\n"); } |