diff options
| -rw-r--r-- | drivers/ata/libata-sata.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/ata/libata-sata.c b/drivers/ata/libata-sata.c index cb46ce276bb1..47169c469f43 100644 --- a/drivers/ata/libata-sata.c +++ b/drivers/ata/libata-sata.c @@ -924,6 +924,11 @@ static ssize_t ata_scsi_lpm_store(struct device *device, spin_lock_irqsave(ap->lock, flags); + if (ap->flags & ATA_FLAG_NO_LPM) { + count = -EOPNOTSUPP; + goto out_unlock; + } + ata_for_each_link(link, ap, EDGE) { ata_for_each_dev(dev, &ap->link, ENABLED) { if (dev->quirks & ATA_QUIRK_NOLPM) { |