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ACPI / device_sysfs: Change _SUN and _STA show functions error return to EIO 

The error return from a sysfs show function is passed up through
the call chain and visible as the return from the read system call.
The show functions for the _STA and _SUN object currently return
-ENODEV. This patch changes the return to -EIO. ENODEV makes less
sense since the "device' exists or there wouldn't be a sysfs file.

Signed-off-by: Betty Dall <betty.dall@hpe.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Betty Dall 2016-04-30 10:03:38 -06:00 committed by Rafael J. Wysocki
parent 6283f97d5f
commit 6c0244091e
1 changed files with 2 additions and 2 deletions
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4
drivers/acpi/device_sysfs.c
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@ -467,7 +467,7 @@ acpi_device_sun_show(struct device *dev, struct device_attribute *attr,
status = acpi_evaluate_integer(acpi_dev->handle, "_SUN", NULL, &sun);
if (ACPI_FAILURE(status))
return -ENODEV;
return -EIO;
return sprintf(buf, "%llu\n", sun);
}
@ -496,7 +496,7 @@ static ssize_t status_show(struct device *dev, struct device_attribute *attr,
status = acpi_evaluate_integer(acpi_dev->handle, "_STA", NULL, &sta);
if (ACPI_FAILURE(status))
return -ENODEV;
return -EIO;
return sprintf(buf, "%llu\n", sta);
}