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| author | Tejun Heo <tj@kernel.org> | 2009-11-18 16:24:21 +0300 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2009-12-03 10:46:33 +0300 |
| commit | f2406770a2f62a3d3c0a6f45c2f397b368af668d (patch) | |
| tree | 15f0a51a7fdbc2e29d66d50196b52436d9f22c9e | |
| parent | 22763c5cf3690a681551162c15d34d935308c8d7 (diff) | |
| download | linux-f2406770a2f62a3d3c0a6f45c2f397b368af668d.tar.xz | |
libata-acpi: missing _SDD is not an error
Missing _SDD is not an error. Don't treat it as one.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| -rw-r--r-- | drivers/ata/libata-acpi.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index b0882cddfd4c..1245838ac13d 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -807,12 +807,11 @@ static int ata_acpi_exec_tfs(struct ata_device *dev, int *nr_executed) * EH context. * * RETURNS: - * 0 on success, -errno on failure. + * 0 on success, -ENOENT if _SDD doesn't exist, -errno on failure. */ static int ata_acpi_push_id(struct ata_device *dev) { struct ata_port *ap = dev->link->ap; - int err; acpi_status status; struct acpi_object_list input; union acpi_object in_params[1]; @@ -835,12 +834,16 @@ static int ata_acpi_push_id(struct ata_device *dev) status = acpi_evaluate_object(dev->acpi_handle, "_SDD", &input, NULL); swap_buf_le16(dev->id, ATA_ID_WORDS); - err = ACPI_FAILURE(status) ? -EIO : 0; - if (err < 0) + if (status == AE_NOT_FOUND) + return -ENOENT; + + if (ACPI_FAILURE(status)) { ata_dev_printk(dev, KERN_WARNING, "ACPI _SDD failed (AE 0x%x)\n", status); + return -EIO; + } - return err; + return 0; } /** @@ -971,7 +974,7 @@ int ata_acpi_on_devcfg(struct ata_device *dev) /* do _SDD if SATA */ if (acpi_sata) { rc = ata_acpi_push_id(dev); - if (rc) + if (rc && rc != -ENOENT) goto acpi_err; } |