diff options
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libata-core.c | 3 | ||||
| -rw-r--r-- | drivers/ata/libata-scsi.c | 10 |
2 files changed, 9 insertions, 4 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index b294339159a4..43842fdcdc87 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -787,8 +787,7 @@ int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev, if (tf->flags & ATA_TFLAG_FUA) tf->device |= 1 << 7; - if ((dev->flags & ATA_DFLAG_NCQ_PRIO) && - (dev->flags & ATA_DFLAG_NCQ_PRIO_ENABLE)) { + if (dev->flags & ATA_DFLAG_NCQ_PRIO_ENABLE) { if (class == IOPRIO_CLASS_RT) tf->hob_nsect |= ATA_PRIO_HIGH << ATA_SHIFT_PRIO; diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 87597a3f6149..49c09d876358 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -323,10 +323,16 @@ static ssize_t ata_ncq_prio_enable_store(struct device *device, goto unlock; } - if (input) + if (input) { + if (!(dev->flags & ATA_DFLAG_NCQ_PRIO)) { + rc = -EOPNOTSUPP; + goto unlock; + } + dev->flags |= ATA_DFLAG_NCQ_PRIO_ENABLE; - else + } else { dev->flags &= ~ATA_DFLAG_NCQ_PRIO_ENABLE; + } unlock: spin_unlock_irqrestore(ap->lock, flags); |