diff options
Diffstat (limited to 'drivers/ata/libata-core.c')
| -rw-r--r-- | drivers/ata/libata-core.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 0b24bd169d61..871ef87a02ca 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -2358,6 +2358,24 @@ static bool ata_dev_check_adapter(struct ata_device *dev, return false; } +bool ata_adapter_is_online(struct ata_port *ap) +{ + struct device *dev; + + if (!ap || !ap->host) + return false; + + dev = ap->host->dev; + if (!dev) + return false; + + if (dev_is_pci(dev) && + pci_channel_offline(to_pci_dev(dev))) + return false; + + return true; +} + static int ata_dev_config_ncq(struct ata_device *dev, char *desc, size_t desc_sz) { @@ -5073,6 +5091,12 @@ void ata_qc_issue(struct ata_queued_cmd *qc) qc->flags |= ATA_QCFLAG_ACTIVE; ap->qc_active |= 1ULL << qc->tag; + /* Make sure the device is still accessible. */ + if (!ata_adapter_is_online(ap)) { + qc->err_mask |= AC_ERR_HOST_BUS; + goto sys_err; + } + /* * We guarantee to LLDs that they will have at least one * non-zero sg if the command is a data command. |