diff options
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/ata_piix.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/libata-scsi.c | 13 |
2 files changed, 15 insertions, 2 deletions
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c index 298e4643b969..5e8afc876980 100644 --- a/drivers/scsi/ata_piix.c +++ b/drivers/scsi/ata_piix.c @@ -567,8 +567,8 @@ static int piix_sata_prereset(struct ata_port *ap) present = 1; } - DPRINTK("ata%u: LEAVE, pcs=0x%x present_mask=0x%x\n", - ap->id, pcs, present_mask); + DPRINTK("ata%u: LEAVE, pcs=0x%x present=0x%x\n", + ap->id, pcs, present); if (!present) { ata_port_printk(ap, KERN_INFO, "SATA port has no device.\n"); diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index 37ec02661433..d168e3413661 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -2353,6 +2353,19 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc) ata_gen_ata_desc_sense(qc); } + /* SCSI EH automatically locks door if sdev->locked is + * set. Sometimes door lock request continues to + * fail, for example, when no media is present. This + * creates a loop - SCSI EH issues door lock which + * fails and gets invoked again to acquire sense data + * for the failed command. + * + * If door lock fails, always clear sdev->locked to + * avoid this infinite loop. + */ + if (qc->cdb[0] == ALLOW_MEDIUM_REMOVAL) + qc->dev->sdev->locked = 0; + qc->scsicmd->result = SAM_STAT_CHECK_CONDITION; qc->scsidone(cmd); ata_qc_free(qc); |