From: Matthew Garrett Date: Thu, 8 Nov 2007 18:37:07 +0000 (+0000) Subject: libata: Don't fail device revalidation for bad _GTF methods X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=037f6bb79f753c014bc84bca0de9bf98bb5ab169;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git libata: Don't fail device revalidation for bad _GTF methods Experience suggests that the _GTF method may be bad. We currently fail device revalidation in that case, which seems excessive. Signed-off-by: Matthew Garrett Signed-off-by: Jeff Garzik --- diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 08a52dd45fb6..545ea865ceb5 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -312,7 +312,7 @@ EXPORT_SYMBOL_GPL(ata_acpi_stm); * * RETURNS: * Number of taskfiles on success, 0 if _GTF doesn't exist or doesn't - * contain valid data. -errno on other errors. + * contain valid data. */ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf, void **ptr_to_free) @@ -339,7 +339,6 @@ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf, ata_dev_printk(dev, KERN_WARNING, "_GTF evaluation failed (AE 0x%x)\n", status); - rc = -EIO; } goto out_free; } @@ -359,7 +358,6 @@ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf, ata_dev_printk(dev, KERN_WARNING, "_GTF unexpected object type 0x%x\n", out_obj->type); - rc = -EINVAL; goto out_free; } @@ -367,7 +365,6 @@ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf, ata_dev_printk(dev, KERN_WARNING, "unexpected _GTF length (%d)\n", out_obj->buffer.length); - rc = -EINVAL; goto out_free; } @@ -511,10 +508,7 @@ static int ata_acpi_exec_tfs(struct ata_device *dev) int gtf_count, i, rc; /* get taskfiles */ - rc = ata_dev_get_GTF(dev, >f, &ptr_to_free); - if (rc < 0) - return rc; - gtf_count = rc; + gtf_count = ata_dev_get_GTF(dev, >f, &ptr_to_free); /* execute them */ for (i = 0, rc = 0; i < gtf_count; i++) {