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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-02-15 01:29:06 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-02-15 01:29:06 +0100 |
| commit | ab62f9cd7b5ecdf853f1612fe1e983cb7cbbac3e (patch) | |
| tree | cd8ab25556dfba0213ecd85b1756756996eed5b1 /drivers/acpi/dock.c | |
| parent | 0a8e5c3d5f0f4929761e6a5bef5358f0ccd8810c (diff) | |
| download | talos-obmc-linux-ab62f9cd7b5ecdf853f1612fe1e983cb7cbbac3e.tar.gz talos-obmc-linux-ab62f9cd7b5ecdf853f1612fe1e983cb7cbbac3e.zip | |
ACPI / dock: Make 'docked' sysfs attribute work as documented
After recent ACPI core changes acpi_bus_get_device() will always
succeed for dock station ACPI device objects, so show_docked()
should not use that function's return value as an indicator of
whether or not the dock device is present.
Make it use acpi_device_enumerated() for this purpose.
Fixes: 202317a573b2 (ACPI / scan: Add acpi_device objects for all device nodes in the namespace)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/dock.c')
| -rw-r--r-- | drivers/acpi/dock.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index e9b3081c4fe9..5bfd769fc91f 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -713,13 +713,11 @@ static acpi_status __init find_dock_devices(acpi_handle handle, u32 lvl, static ssize_t show_docked(struct device *dev, struct device_attribute *attr, char *buf) { - struct acpi_device *tmp; - struct dock_station *dock_station = dev->platform_data; + struct acpi_device *adev = NULL; - if (!acpi_bus_get_device(dock_station->handle, &tmp)) - return snprintf(buf, PAGE_SIZE, "1\n"); - return snprintf(buf, PAGE_SIZE, "0\n"); + acpi_bus_get_device(dock_station->handle, &adev); + return snprintf(buf, PAGE_SIZE, "%u\n", acpi_device_enumerated(adev)); } static DEVICE_ATTR(docked, S_IRUGO, show_docked, NULL); |
