diff options
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libata-eh.c | 6 | ||||
| -rw-r--r-- | drivers/ata/libata-sata.c | 11 | ||||
| -rw-r--r-- | drivers/ata/libata-scsi.c | 16 | ||||
| -rw-r--r-- | drivers/ata/libata.h | 1 |
4 files changed, 28 insertions, 6 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 70022bf91493..0444e1c91c43 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -1428,8 +1428,10 @@ static void ata_eh_request_sense(struct ata_queued_cmd *qc) err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0, 0); /* Ignore err_mask; ATA_ERR might be set */ if (tf.status & ATA_SENSE) { - ata_scsi_set_sense(dev, cmd, tf.lbah, tf.lbam, tf.lbal); - qc->flags |= ATA_QCFLAG_SENSE_VALID; + if (ata_scsi_sense_is_valid(tf.lbah, tf.lbam, tf.lbal)) { + ata_scsi_set_sense(dev, cmd, tf.lbah, tf.lbam, tf.lbal); + qc->flags |= ATA_QCFLAG_SENSE_VALID; + } } else { ata_dev_warn(dev, "request sense failed stat %02x emask %x\n", tf.status, err_mask); diff --git a/drivers/ata/libata-sata.c b/drivers/ata/libata-sata.c index fd4dccc25389..d6bbdfe0c455 100644 --- a/drivers/ata/libata-sata.c +++ b/drivers/ata/libata-sata.c @@ -1468,10 +1468,13 @@ void ata_eh_analyze_ncq_error(struct ata_link *link) sense_key = (qc->result_tf.auxiliary >> 16) & 0xff; asc = (qc->result_tf.auxiliary >> 8) & 0xff; ascq = qc->result_tf.auxiliary & 0xff; - ata_scsi_set_sense(dev, qc->scsicmd, sense_key, asc, ascq); - ata_scsi_set_sense_information(dev, qc->scsicmd, - &qc->result_tf); - qc->flags |= ATA_QCFLAG_SENSE_VALID; + if (ata_scsi_sense_is_valid(sense_key, asc, ascq)) { + ata_scsi_set_sense(dev, qc->scsicmd, sense_key, asc, + ascq); + ata_scsi_set_sense_information(dev, qc->scsicmd, + &qc->result_tf); + qc->flags |= ATA_QCFLAG_SENSE_VALID; + } } ehc->i.err_mask &= ~AC_ERR_DEV; diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index e2ebb0b065e2..1287386fd029 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -188,6 +188,22 @@ DEVICE_ATTR(unload_heads, S_IRUGO | S_IWUSR, ata_scsi_park_show, ata_scsi_park_store); EXPORT_SYMBOL_GPL(dev_attr_unload_heads); +bool ata_scsi_sense_is_valid(u8 sk, u8 asc, u8 ascq) +{ + /* + * If sk == NO_SENSE, and asc + ascq == NO ADDITIONAL SENSE INFORMATION, + * then there is no sense data to add. + */ + if (sk == 0 && asc == 0 && ascq == 0) + return false; + + /* If sk > COMPLETED, sense data is bogus. */ + if (sk > COMPLETED) + return false; + + return true; +} + void ata_scsi_set_sense(struct ata_device *dev, struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq) { diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 2c5c8273af01..2cd6124a01e8 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -114,6 +114,7 @@ extern int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht); extern void ata_scsi_scan_host(struct ata_port *ap, int sync); extern int ata_scsi_offline_dev(struct ata_device *dev); +extern bool ata_scsi_sense_is_valid(u8 sk, u8 asc, u8 ascq); extern void ata_scsi_set_sense(struct ata_device *dev, struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq); extern void ata_scsi_set_sense_information(struct ata_device *dev, |